The end of a business email typically includes three things stacked in order: a closing phrase (like “Best regards”), a signature block with your name and contact details, and sometimes a legal disclaimer or company footer. Each piece serves a different purpose, and what you include depends on whether you’re sending a routine message to a colleague or a formal email to a client.
The Closing Phrase
Right before your name, you’ll see a short sign-off that sets the tone for the message. The most common professional options are “Best,” “Regards,” “Sincerely,” “Thank you,” and “All the best.” These work in nearly any business context and rarely strike the wrong note.
Your choice should match your relationship with the reader and the purpose of the email. If you’re asking someone for something or giving them instructions, a sign-off like “Thanks in advance” or “Thank you for your time” acknowledges the effort you’re requesting. If you’re writing to someone you’ve never met, lean toward “Sincerely” or “Regards” until you get a feel for how formal they prefer things. Once a back-and-forth is established, shorter options like “Best” or “Thanks” are perfectly fine.
What to skip: “Love,” “XO,” “Peace out,” “Yours truly,” and text-style abbreviations like “Thx” all read as too casual or too intimate for professional email. Even if you’re friendly with a colleague, these can look strange when the email gets forwarded to someone else.
The Signature Block
Below the closing phrase sits your signature block, which functions as a digital business card. A standard professional signature includes four elements:
- Full name
- Job title
- Company name
- Direct phone number or other contact information
That’s the core. Many people also add a company website URL, and some include a LinkedIn profile link. The goal is to give the recipient enough information to reach you through another channel or verify who you are, without making them search for it.
Keep it clean. Overloading your signature with large images, multiple logos, or heavy formatting creates visual clutter and can actually trigger spam filters in some email systems. A simple, text-based signature with one small company logo (if your organization uses one) is the safest approach. Double-check that your title and phone number are current, especially after a promotion or office move.
Legal Disclaimers and Confidentiality Notices
If you work at a larger company, law firm, or financial institution, you’ve probably noticed a block of small-print legal text at the very bottom of outgoing emails. These disclaimers are added automatically by the organization’s email system, not by individual senders. They serve several purposes:
- Confidentiality protection: Notifying unintended recipients that the email contents are private and shouldn’t be shared or acted upon.
- Contract disclaimer: Stating that the email doesn’t create a binding agreement.
- Liability limitations: Disclaiming responsibility for viruses, errors, or opinions expressed by the sender that don’t represent the company’s official position.
A typical confidentiality notice reads something like: “The information transmitted by this email is intended only for the person or entity to which it is addressed. This email may contain proprietary, business-confidential and/or privileged material. If you are not the intended recipient, be aware that any use, review, retransmission, distribution, or any action taken in reliance upon this message is strictly prohibited.”
Whether these disclaimers are legally enforceable is debatable, and in many situations they carry little actual legal weight. But companies include them as a precaution, and they’ve become a standard feature of corporate email. If your employer adds one automatically, you don’t need to worry about it. If you’re a solo professional or small business owner, adding one is optional and depends on how sensitive your communications tend to be.
Marketing Email Footers
If the email is commercial or promotional rather than a one-to-one business message, the footer has specific legal requirements under the CAN-SPAM Act. Every marketing email sent in the U.S. must include:
- A valid physical postal address: This can be a street address, a registered P.O. box, or a private mailbox through a commercial mail receiving agency.
- A clear opt-out mechanism: The recipient must be able to easily unsubscribe from future marketing emails. This can be a reply-to address or a link to a single webpage. The unsubscribe option must remain functional for at least 30 days after the email is sent, and the sender must honor the request within 10 business days.
The opt-out process can’t require the recipient to pay a fee, hand over personal information beyond their email address, or jump through extra steps like logging into an account. Companies can offer a menu that lets people opt out of specific types of messages, but they must also include an option to stop all marketing emails entirely.
These footer requirements apply only to commercial messages, not to regular business correspondence between individuals. But if your company sends newsletters, promotional offers, or automated outreach, the footer needs these elements or the sender risks enforcement action from the FTC.
Putting It All Together
In a typical business email, the ending flows in this order: a closing line wrapping up the message content, a sign-off phrase, your name and signature block, and then any company-mandated legal text. For a routine email to a coworker, the whole thing might be as simple as “Thanks, [Your Name]” followed by your auto-populated signature. For a formal email to a new client, you’d use a more polished sign-off, ensure your full signature block is attached, and let any company disclaimer appear below it.
The sign-off and signature are the parts you control and the parts that shape how professional you appear. The legal footers are handled at the organizational level. Focus your energy on getting the first two right: a closing phrase that fits the tone and a signature block that’s accurate, current, and easy to read.