What Should I Not Put in an Email Signature?

Motivational quotes are the most universally problematic signature element. The quote you find inspiring — your favorite Brené Brown or Steve Jobs line — reads differently to recipients. It adds length, it is not about the business at hand, and it signals that the sender wants their personality to be noticed. Professionals consistently report finding quotes in signatures off-putting. The effect is amplified in formal contexts: a lawyer or financial advisor sending a contract with a Gandhi quote below their name undermines credibility.

Animated GIFs present a different problem. They are blocked outright by Outlook 2007, 2010, 2013, and 2019, which display only the first frame — often a mid-animation frame that looks broken. In email clients that do render animation, they create motion that draws attention away from the email content. Gmail on mobile renders animations inconsistently depending on the Android version. The cross-client failure rate is high enough that animated elements should never appear in professional signatures.

Multiple phone numbers create decision paralysis. If your signature shows a direct line, a mobile number, and a general office line, recipients have to guess which one to call. Pick your primary contact number and list one. If you need to share an alternate number for a specific conversation, add it inline in the email body.

Full legal disclaimers — the "This email and any attachments are for the exclusive use of the intended recipient" boilerplate — are largely unenforceable and widely ignored. More importantly, they add four to eight lines of text that the recipient must visually process before realizing it is not part of the message. If your organization requires a disclaimer for compliance reasons, keep it to two lines in a small, muted font below a visual separator. Do not write paragraphs.

Social icons for platforms your contacts do not use professionally add noise. A real estate agent does not need a TikTok icon in their signature. A software engineer does not need a Pinterest link. Include only the platforms where your professional presence is active and where a recipient might reasonably want to connect.

The fastest way to improve any signature is to remove everything that requires explanation. If you have to justify why an element belongs — it probably does not. Start with quotes: delete them without negotiation. Next, count your phone numbers and keep one. Remove any social icons for platforms you have not posted to in 90 days.

For images: one image per signature. Either a logo or a headshot, not both. Your logo should identify your company; your headshot identifies you. In most email contexts, the logo is more useful because it brands every outbound communication. Choose based on whether you are marketing a business or building a personal professional brand.

Banner images — the promotional graphics that appear below the main signature content — are appropriate only in direct marketing emails, not in individual correspondence. If every email you send includes a "Book a free consultation" banner, contacts start filtering it out like an ad. Reserve promotional content for newsletters and campaign emails.

What stays: name, title, company, direct phone, website. Add one social link if your LinkedIn is up to date and relevant to your work. That is your core. SignatureFox is designed around this model — the generator surfaces the right fields and omits the ones that create problems.