10 Professional Email Closings That Won’t Get You Spammed

Your Sign-Off Is Costing You Replies

Most advice about professional email closings is stuck in etiquette mode. It tells you to sound polite, avoid being too casual, and pick something that feels professional. That is not enough if you care about replies, inbox placement, and sender reputation.

The end of your email does more than wrap up the message. It affects how human your email feels, how clear your ask sounds, and whether the message reads like a real note or a template blast. In outbound, sales, customer success, recruiting, partnerships, and even internal leadership communication, the closing is part tone-setting and part conversion copy.

That matters because the sign-off sits next to two things that directly influence outcomes: First, your final call to action. Second, your signature block. If those pieces clash, your email feels off. If they work together, the message lands better.

The data is clearer than many realize. A study of more than 350,000 email threads across over twenty online communities found that closings materially affected response rates, and “thanks in advance” came out on top while generic options like “best” and “regards” lagged behind (Boomerang’s analysis of email sign-offs). That should end the idea that sign-offs are decoration.

There is also the deliverability side many gurus skip. Spam filters do not judge a closing in isolation, but they do react to overall message quality, formatting consistency, and signals that an email is mass-produced or manipulative. A weak closing will not tank a healthy domain by itself. But it can make an already fragile email feel less trustworthy.

This is the playbook our team uses. Pick the closing that matches the relationship, supports the ask, and fits the rest of the email. Then test it before you scale it. If your last line is wrong, the rest of the email has to work harder than it should.

1. Best regards, [Your Name]

If you need one default, this is it.

“Best regards” is the safest broad-use option for professional email closings because it sounds professional without sounding stiff. It works when you do not know the recipient well, when you are contacting someone for the first time, and when you need a neutral tone that does not distract from the ask.

I do not treat it as the highest-converting sign-off. I treat it as the control. That distinction matters.

When to use it

Use “Best regards” in messages like these:

• First-touch outreach: You are emailing a prospect, partner, vendor, or executive with no prior relationship.
• Formal follow-ups: You already reached out once, but the conversation still needs a professional frame.
• Cross-functional communication: You are contacting legal, procurement, finance, or senior leadership and do not want to misread the room.

A lot of teams make the mistake of trying to add personality too early. That can make a cold email feel forced. “Best regards” avoids that problem.

What it does well, and what it does not

Its biggest advantage is consistency. The closing does not compete with your offer, your CTA, or your signature. That makes it useful when you are running tests and need a stable baseline.

Its weakness is the same thing. It is neutral. Neutral rarely hurts, but neutral also rarely gives you extra lift.

Use “Best regards” when the relationship is unknown. Then test warmer or more gratitude-driven closings against it once the rest of the email is stable.

If you are sending at volume, do not assume a safe sign-off can rescue a bad email. Check the entire message with an email spam checker before launch. Closings matter, but so do authentication, body copy, links, and signature formatting.

Real-world use case: an enterprise B2B sales rep sending an initial introduction to an operations director. “Cheers” is too casual. “Sincerely” is too heavy. “Best regards” gives the rep a clean, credible finish.

2. Warm regards, [Your Name]

“Warm regards” works when the conversation should feel professional and human at the same time.

This is not the sign-off I use for a first cold touch unless the body already carries a softer, relationship-first tone. It performs better after someone has opted in through behavior. They replied, booked a call, requested details, or engaged positively in some other way.

Where it fits best

Think of “Warm regards” as a nurture closing.

It fits naturally in:

• Customer success emails: You are guiding a new client after kickoff.
• SaaS onboarding sequences: The user already signed up and now needs confidence, not pressure.
• Agency communication: You are reinforcing trust after a discovery call or proposal review.
• Relationship-based sales: The lead is qualified and the tone can afford to relax.

The phrase works because it softens the edge without becoming overly familiar. That is useful when the next step requires cooperation, not just a response.

The trade-off

The risk is mismatch.

If the body is blunt, heavily templated, or aggressively salesy, “Warm regards” feels fake. Recipients notice tone friction fast. When the email says “quick bump” and “just circling back” three times, a warm closing will not fix it.

That is why I pair this sign-off with clear personalization. Mention the call, the project, the onboarding milestone, or the specific issue you discussed. Then the closing feels earned.

For example, a customer success manager might write:

“Based on your onboarding goals, I’d start with the reporting setup first and leave custom fields for phase two.

Warm regards,
Maya”

That sounds like an actual person wrote it. Good. That is the point.

If you are unsure whether your email has enough warmth in the body to support this sign-off, go one step more neutral. “Best regards” is still safer than a forced tone.

3. Thank you, [Your Name]

If your email asks for something specific, “Thank you” is one of the strongest professional email closings you can use.

It does two things at once. It signals respect for the recipient’s time, and it frames the next action as reasonable. That is especially useful in outbound and service emails where the reader needs to make a decision, reply, review something, or click through.

Prospeo reports that closings containing a “thank” variant average a 62% response rate, compared with 46% for others (Prospeo’s data on professional email closings). That does not mean you should paste “thank you” into every message. It means gratitude-based endings deserve real testing.

Best use cases

“Thank you” works well when the ask is direct:

• Requesting a meeting
• Asking for approval
• Following up on a proposal
• Confirming next steps after support or service interaction
• Requesting feedback from a decision-maker

The key is placement. Your CTA should sit immediately above the closing.

Example:

“Would Tuesday afternoon work for a quick call to review fit?

Thank you,
Jordan”

That is cleaner than adding extra filler after the ask.

Keep it clean

Do not overdo the gratitude. One “Thank you” is enough. If the body already says “thank you” multiple times, repeating it in the sign-off can feel needy or scripted.

Put the ask on its own line, then close with “Thank you.” The recipient should know exactly what you want before they reach your signature.

When you test this closing in campaigns, track deliverability with reply performance. If your opens are weak or inbox placement looks unstable, start by learning how to check if your emails go to spam. A strong sign-off helps, but it cannot overcome a damaged sending setup.

A good real-world fit is a partnership email to a busy executive. You are asking for consideration. “Thank you” makes the request feel direct, respectful, and easy to process.

4. Looking forward to connecting, [Your Name]

This closing works when there is a believable next step and you want to lean into momentum.

It is optimistic. That is useful. But it also carries a risk. If the email has not earned that optimism, it reads like canned sales language.

Why it works

“Looking forward to connecting” nudges the recipient toward a future interaction. It subtly assumes the conversation will continue. That is stronger than a neutral sign-off but softer than a pushy one.

I like it for warm prospecting and networking follow-ups where there is already some context:

• You met at an event
• You were introduced by a mutual contact
• The prospect engaged on LinkedIn first
• The person requested more information
• A partnership conversation is already open

In those situations, this phrase can increase perceived continuity. The recipient does not feel like they are replying to a stranger out of nowhere.

How to avoid sounding fake

Support the closing with something concrete in the body. A scheduling link, a proposed time, a reference to the shared context, or a quick statement of value does the job.

Example:

“I recorded a short walkthrough showing how the workflow would look for your team. If helpful, I can also send over a sample rollout plan.

Looking forward to connecting,
Alyssa”

That feels natural because the body gives the reader a reason to continue.

Do not use this closing in a totally cold email that offers no relevance. It will sound presumptive. And do not pair it with a hard-pressure CTA like “reply today” unless the relationship supports that tone.

This sign-off is strongest when the conversation is opening, not when you are trying to revive a dead thread.

5. Sincerely, [Your Name]

“Sincerely” still has a place, though a narrower one than many assume.

This is a formal closing. It works best when the email itself is formal from top to bottom. If the subject line is casual, the body is short, and the email sounds conversational, ending with “Sincerely” creates tonal whiplash.

Use it where formality adds credibility

Good fits include:

• Formal business proposals
• Contract or policy communication
• Board, investor, or executive correspondence
• Legal-adjacent messages
• Official company announcements

In those contexts, “Sincerely” adds seriousness. It tells the reader the message should be read as deliberate and considered.

That is useful in high-stakes situations when you want to avoid sounding chatty.

Match the rest of the email

The biggest mistake with this closing is inconsistency. Teams write a modern, plain-English email and slap “Sincerely” on the bottom because it sounds professional. It does not help unless the rest of the message supports it.

Formatting matters here. Subject line style, capitalization, punctuation, and signature structure all shape how formal the email feels. If you are using “Sincerely,” clean up the full package, including your email subject line formatting.

A simple example:

“Attached is the revised proposal for review. Please let me know if you require any additional documentation prior to signature.

Sincerely,
Daniel Reyes
VP, Strategic Partnerships”

That works because the whole email is aligned.

Use this sign-off for executive or institutional communication. Skip it for casual follow-ups, nurture emails, or mid-funnel sales messages. In those environments, it often reads heavier than necessary.

6. Cheers, [Your Name]

“Cheers” can be excellent. It can also be a bad miss.

This closing signals ease, familiarity, and confidence. In the right context, that makes your email feel more human. In the wrong context, it makes you sound like you are trying to force rapport.

When it works

“Cheers” fits best in ongoing communication where the relationship is already established.

Examples:

• Internal messages inside a startup
• Agency emails with a long-term client
• Ongoing project work with a familiar counterpart
• Fast-moving conversations in creative or tech teams

It also works better when the recipient already uses informal language. Mirroring matters. If they end with “Cheers,” replying in kind is usually fine.

When to avoid it

Do not use “Cheers” in first-touch outreach to conservative industries. It is also a poor fit for senior executive emails where authority, distance, or protocol still matter.

The other risk is geography and culture. There is no standardized research comparing closing effectiveness by industry or culture, and current guidance does not give teams data-driven rules by vertical (noted in Grammarly’s discussion of professional email endings). That gap matters because what feels natural in one context can feel too loose in another.

So treat “Cheers” as context-dependent, not universally friendly.

A practical example: a creative director emailing a client they have worked with for months about revised concept files. “Cheers” sounds normal there. The same sign-off in a first email to a bank compliance lead would feel off.

If you would not say it comfortably in a meeting with that person, do not use it in the sign-off.

That rule saves a lot of awkwardness.

7. All the best, [Your Name]

This is the closing for relationship maintenance.

“All the best” carries more goodwill than “Best regards” and less familiarity than “Warm regards.” It is one of the best options when you want to close a loop cleanly and leave the interaction on a positive note.

Why it earns a place in the rotation

A lot of email communication is not about booking a call right now. It is about preserving trust. Candidate rejection emails, partner thank-yous, post-meeting follow-ups, and notes to former colleagues all fall into that category.

That is where “All the best” shines.

It says, “This conversation matters, and I want it to end well,” without sounding sentimental or overly formal.

Use it in moments like these:

• Networking follow-ups
• Closing out a thread after a decision
• Maintaining a relationship with a past client or colleague
• Sending appreciation after a collaborative project
• Delivering a no for now without burning the bridge

A subtle but useful signal

This closing works especially well when you are not pushing for an immediate response. It removes pressure. That can preserve reply quality because the recipient does not feel cornered.

Example:

“Thanks again for taking the time to walk me through your hiring plans. Even though the timing is not right on my end, I appreciate the conversation and hope our paths cross again.

All the best,
Nina”

That reads well because the sign-off matches the purpose.

If your email contains a direct ask with urgency, use a more action-oriented closing. “All the best” softens the ending. That is great for goodwill, less ideal for high-friction conversion.

8. [Your Name]

Sometimes the best sign-off is no sign-off phrase at all.

Just your name can work, but only when the thread has already earned that level of brevity. This is the minimalist option. It signals familiarity, speed, and continuation rather than ceremony.

Where minimalism helps

Use just your name in situations like:

• A long internal thread
• Quick coordination with a teammate
• Mid-project client communication after multiple replies
• Fast-moving operational exchanges where everyone already knows each other

In those cases, adding a formal sign-off every time can feel robotic. The thread already has context. The relationship already has shape.

A short reply such as this is completely fine:

“Confirmed. I’ll send the revised deck before 3.

Megan”

That is efficient and normal in an active thread.

Where it goes wrong

Use this in a cold email and you will sound abrupt. Use it too early with a client and it can read as careless. Use it in a formal request to leadership and it can look disrespectful.

The decision should depend on thread depth and recipient behavior. If they are still using full sign-offs, you probably should too. If the conversation has relaxed and both sides are moving quickly, dropping down to just your name often feels natural.

There is also a practical reason to be careful with stripped-down endings. The closing and signature are not style choices. Signature blocks can drive meaningful branding and engagement. Dynamic signatures have been reported to earn a 4% CTR versus 2.5% for standard marketing emails, and branded signatures increased website CTR to 15% versus 3% without while also lifting response rates by 22% (email signature statistics from Wave Connect).

So even if you drop the phrase, do not neglect the signature. Minimal text does not mean sloppy presentation.

9. Respectfully, [Your Name]

“Respectfully” is a specialized tool. Most business senders do not need it often.

It is more formal than “Sincerely” and carries a clear signal of deference. That can be appropriate in institutional or hierarchical communication. It can also sound stiff, overly submissive, or strange in ordinary business email.

The narrow lane where it fits

Use “Respectfully” when the recipient’s role or the institution calls for elevated formality:

• Government officials
• Senior academic administrators
• Military contexts
• Religious leadership
• Formal public-interest correspondence

In those cases, the closing can reflect protocol. That is different from trying to “sound professional.”

A message to a university dean about a formal request may justify “Respectfully.” A sales email to a VP of operations does not.

Why many teams should avoid it

This sign-off is not for marketing, outbound sales, or standard client communication. It creates too much distance and often sounds unnatural unless the context clearly demands it.

There is another reason to be cautious. Existing advice on closings does not address cultural and globalization effects very well, even though teams now email across borders every day. There is no established research covering how closings are perceived across geographies, devices, and providers, and current resources leave that as a major gap (University of Pennsylvania Career Services notes the broader context around professional sign-offs).

That means “Respectfully” should be chosen for clear institutional reasons, not because it sounds impressive.

If you are not certain it is right, use “Sincerely” instead. You will still sound serious without risking an awkward overcorrection.

10. Talk soon, [Your Name]

“Talk soon” works only when the thread already has momentum. Used at the right time, it lowers formality, keeps the exchange human, and signals that another touchpoint is expected. Used too early, it creates friction because the relationship has not earned that assumption.

That trade-off matters for more than tone. In outreach and client communication, small wording choices shape reply behavior. Closings that match the stage of the conversation tend to feel natural, which makes the message easier to answer. Closings that feel forced can have the opposite effect. The recipient may not mark the email as spam because of two words at the end, but mismatched language can reduce engagement, and low engagement is not a metric serious senders ignore.

Where it fits best

“Talk soon” is strongest in threads where the next interaction is already implied or scheduled, such as:

• Follow-up after a productive sales call
• Warm introductions where both parties have replied
• Active client work with clear next steps
• Internal threads tied to an ongoing project

It is a poor fit for first-touch cold email. It can also feel presumptuous in formal procurement, legal, or executive communication where precision matters more than warmth.

Why it can help reply rates

This closing works because it points toward continuation without sounding stiff. It tells the reader the thread is active and unfinished. That can support faster replies in live deals and active projects, especially when the email body names what happens next.

For example:

“I’ll send the revised proposal and implementation timeline by Friday.

Talk soon,
Eric”

That works because the sign-off matches the message. The sender has already established a reason for another exchange.

Use it with timing, not optimism

Do not ask the closing to do the job of the body copy. If you need approval by Thursday, say that directly before the sign-off. If there is no real next step, “Talk soon” can sound like borrowed familiarity.

Grammarly’s guidance on email sign-offs also frames “Talk soon” as a casual closing best used when you already expect continued contact, not as a default professional sign-off for every situation (Grammarly on email sign-offs).

My rule is simple. Use “Talk soon” only when another conversation is already likely. That keeps the tone credible, protects reply intent, and avoids the subtle mismatch that weakens professional email performance.

Quick Comparison of 10 Professional Email Closings

The Final Word on Your Final Words

The closing line in your email is not filler. It is part tone, part persuasion, and part trust signal.

That is why so much generic advice on professional email closings falls short. It treats every message the same. Real email performance does not work that way. A formal proposal, a cold outbound email, a customer success follow-up, and a warm sales reply should not all end the same way. Different contexts need different endings.

The practical approach is:

Use “Best regards” when you need a safe default. Use “Thank you” when you are asking for something specific. Use “Warm regards” or “All the best” when relationship quality matters. Use “Talk soon” or “Looking forward to connecting” when momentum is real. Keep “Sincerely” and “Respectfully” for communication that requires formality. And only use your name alone when the thread is already moving fast and the relationship can support that brevity.

Another point often missed is that your sign-off does not work alone. It sits next to your CTA, your signature, and the overall tone of the email. If those elements are inconsistent, the message feels manufactured. If they line up, the email feels intentional and trustworthy.

That trust matters to readers. It also matters to deliverability. A closing phrase by itself is not what sends an email to spam, but weak closing choices often show up inside weak emails. The body is templated, the links look off, the signature is cluttered, the subject line is messy, authentication is incomplete. Then the sender blames the inbox provider.

A better habit is to treat the close as one part of a full email system. Write the email, match the sign-off to the ask and relationship, check the signature, review formatting. Then test the message before you scale it.

That is where MailGenius can be useful. It is an email deliverability testing platform, and its spam test can help you catch issues in copy, formatting, authentication, links, and reputation before a campaign goes live. That matters whether you are sending outbound, nurturing leads, or running lifecycle email.

Do not guess which closing is best for your audience. Test it. Start with one control version and one challenger. Keep the body stable. Measure replies. Watch placement. If a closing improves response quality but inbox placement slips, fix the underlying email setup first instead of forcing a copy change to do the whole job.

If you want the bigger picture around tone and communication standards, Mastering Professional Email Etiquette is a useful companion read.

The point is straightforward. Your final words shape whether the email feels credible, human, and worth answering. That is too important to leave on autopilot. Tighten the sign-off, test the message, and stop losing replies because the last line got less attention than the first.

Before you send your next campaign, run a free spam test with MailGenius. It will show you whether your closing, signature, subject line, links, and technical setup help your email land in the inbox or push it closer to spam.