AutographGuides › Checklist

What to Put in a Professional Email Signature (2026 Checklist)

Updated July 2026 · always / sometimes / never

Seven things belong, five are situational, and four should never appear. Here's the checklist, with the reasoning — so you can stop second-guessing the footer of every email you send.

The checklist

1

ALWAYS: name, title, organization

The core triple. Name slightly larger or bold; title and company on the next line. This is the part everyone scans.

2

ALWAYS: one phone, one email, one website

Each as a working link (tel:, mailto:, https). One of each — a menu of contact methods creates hesitation, not convenience.

3

USUALLY: a photo or logo

Headshot when you are the brand (services, sales, freelance); logo when the company is. Hosted properly (or it breaks).

4

USUALLY: LinkedIn

The one social link with universal professional value. Others only when directly relevant to your craft.

5

SOMETIMES: a call to action

One button — book, quote, download — when meetings or leads are the goal. Skip it for pure correspondence roles.

6

SOMETIMES: credentials, license numbers, pronouns

Regulated professions (law, real estate, healthcare) often must include license details. Pronouns if you choose. Both belong on the line under your name.

7

SOMETIMES: the disclaimer

Legal/confidentiality language where required or firm-mandated — styled small and gray, below everything.

8

NEVER: inspirational quotes

The most-mocked signature element in existence. No exceptions survive contact with recipients.

9

NEVER: the image-only signature

One big picture = broken when images are off, uncopyable, invisible to screen readers.

10

NEVER: six social icons and three phone numbers

Curation is the signal. One number, one or two profiles.

11

NEVER: 'Sent from my iPhone' as your brand

The default tagline tells clients which emails you wrote carelessly. Put your real signature on the phone too (it's fixable).

The checklist, pre-built

Every Autograph template implements this checklist — fill in your details and install. Free to try; $29 once for everything.

Download Autograph free See the templates
Free to try · $29 one-time unlocks Pro · No subscription · macOS 14+

Common questions

How long should the whole thing be?

4–7 lines. If you're using all the SOMETIMES items at once, you're probably at nine — cut.

Does the checklist change for internal email?

Yes — colleagues need almost none of it. A short second signature ('Jane · ext 412') for internal threads is a classy touch Apple Mail supports.

Fastest way to implement this checklist?

A template that already encodes it: name/title/company hierarchy, linked contacts, image slots, optional CTA and disclaimer — that's Autograph's default anatomy.

More guides

How to Add an Email Signature in Apple Mail (macOS)How to Add an Email Signature on iPhone (With a Photo That Actually Works)How to Add an HTML Email Signature to Apple MailHow to Add an Email Signature in GmailHow to Add an Email Signature in Outlook (Web, Mac & Windows)How to Add an Email Signature in Yahoo MailHow to Add an Email Signature in iCloud Mail (icloud.com)Why Your Email Signature Images Are Broken (Every Cause, Fixed)Apple Mail Signature Showing a Blue Box With a Question Mark? Here's the FixApple Mail Signatures Disappeared After a macOS Update? Here's How to Get Them BackImages Not Showing in Your Apple Mail Signature? Every Cause, FixedThe Best Email Signature Tool for Mac and Apple Mail (2026)Why Your Email Signature Looks Different on iPhone vs Mac (and How to Fix It)Stop iCloud From Wiping Your Apple Mail Signatures (Permanent Fix)How to Add a Clickable Logo to Your Apple Mail Signature (Without Broken Attachments)Best WiseStamp Alternative for Mac Users (2026)How to Get an HTML Signature Into Apple Mail — No Code RequiredThe Realtor's Email Signature: Compliant, Clickable, and Installed in Apple MailHow to Add an iPhone Email Signature That Actually Keeps Its FormattingExclaimer vs WiseStamp vs the Mac-Native Way: Which Signature Approach Fits You?The Lawyer's Email Signature: Esq., Disclaimers, and Bar Details Done RightProfessional Email Signature Examples That Actually Work in 2026Email Signature Size Guide: Width, Logo, Headshot, and File-Size NumbersHow to Add an Email Signature in Every Major Mail Client (2026)The Teacher's Email Signature: Professional, Compliant, and Parent-FriendlyThe Doctor's Email Signature: Credentials, Disclaimers, and a Clean Setup11 Email Signature Mistakes That Make You Look UnprofessionalHow to Make Your Email Signature Mobile-FriendlyHow to Use a Different Signature for Each Email Account in Apple MailThe Freelancer's Email Signature: Look Bigger Than You AreHow to Add a Marketing Banner to Your Apple Mail SignatureHow to Make an Email Signature That Works in Dark ModeHow to Make an Arabic or Hebrew Email Signature (Right-to-Left)Autograph vs WiseStamp (2026): One-Time Mac App vs Subscription GeneratorBest MySignature Alternative for Mac & Apple Mail (2026)Exclaimer Alternative for Individuals & Small Teams (2026)The Consultant's Email Signature: Credibility in Every ReplyThe Photographer's Email Signature: Show the Work, Book the ShootThe Financial Advisor's Email Signature: Credentials, Compliance, and TrustThe Sales Rep's Email Signature: Built to Get Replies and Book MeetingsHow to Add an Email Signature in Mimestream (the Mac Gmail App)How to Add an HTML Email Signature in Outlook for MacFix: Your Email Signature Shows as an Attachment in Outlook (ATT00001, image files, winmail.dat)CodeTwo Alternative for Individuals & Mac Users (2026)All guides →