Learn · email signature glossary
TL;DR
An email signature photo is a headshot embedded in the signature block, usually placed to the left of the name and contact details. The standard treatment is a tight head-and-shoulders crop displayed at 60 to 100 pixels, exported at twice that size so it stays sharp on high-density screens, and saved as a JPG or PNG under 50 KB. Circular crops are popular but should be baked into the image file itself, since the CSS that rounds corners does not work in Outlook. Like any signature image, the photo must be hosted at a public HTTPS URL rather than attached.
Re: In practice
A face attached to a name changes how correspondence lands, which is why photos are near-universal in signatures for real estate agents, recruiters, salespeople, and consultants: people in those roles are the product, and recognition at a later meeting or call has direct value. The trade-offs are practical. A photo enlarges the signature visually and can feel out of place in engineering or legal contexts, and image-blocking clients will show an empty box where the face should be, so alt text with the sender's name is worth setting. Quality is binary: a well-lit, current, professional headshot helps, while a cropped vacation photo hurts more than omitting the photo entirely. Teams should decide once whether photos are in the template, then hold everyone to the same crop and style.
Fwd: Worth a look
signatures in dark mode
Dark mode inverts email backgrounds and can make logos and text in signatures unreadable. Learn what changes and how to design around it.
signature color choices
Email signature colors are the text, accent, and link hues in your sign-off, set as inline hex values and chosen to survive dark mode inversion.
signature generator definition
An email signature generator is a tool that turns your details into ready-to-paste, email-safe HTML, sparing you from hand-coding tables.
PNG vs JPG for signatures
PNG, JPG, and GIF are the image formats that work in email signatures. Learn which to use for logos, photos, and banners, and why SVG fails.
phone email signature
A mobile email signature is what appears under messages sent from your phone, set separately per app and best kept short and narrow.
responsive signature design
A responsive email signature stays readable on any screen width. In practice that means compact fixed-width tables, not media queries.
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