Professional Email Signature

An ideal email signature is 300-600px wide and up to 150px tall. Content should not exceed 4-6 lines of text. Logo should be up to 200x50px and under 20KB. Total signature weight (with all images) should not exceed 50KB so it does not slow down sending and receiving.

HTML signatures look more professional — they allow formatting, links, logo and social media icons. However, plain text is universally compatible and never "breaks" across email clients. For business communication, HTML is the better choice. For technical roles or mailing lists, plain text is acceptable.

Use inline CSS styles (not external stylesheets), tables for layout instead of div elements, web-safe fonts (Arial, Verdana, Georgia), and images with absolute URLs (not base64). Test the signature in at least 3 email clients before using. Avoid advanced CSS effects — email clients do not support them consistently.

Company logo yes, but size is critical. Logo should be max 200x50px and under 20KB. Personal photo is optional — it can build trust but also increase signature size. Use PNG with transparent background. Always add alt text in case the image does not load. Never use animated GIFs.

For brand consistency, create a template everyone uses — same font, colors, logo and layout. Variable elements: name, position, phone, email. BeoHosting email hosting supports centralized signature management. For larger teams, use tools like Exclaimer or CodeTwo for automatic signature injection.