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5 min

Email Signature in Outlook

Logo, contact details, and social media.

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BeoHosting Team

10+ years of experience — Web hosting and infrastructure specialists

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Outlook makes it easy to create a professional email signature once and have it appear in every email you send. This guide walks you through five steps: opening the signature editor, designing a clean signature with logo and contact info, adding social media icons, and setting it as default for new emails and replies.

Email Signature in Outlook

1

Open signature settings in Outlook

In Outlook desktop: File → Options → Mail → Signatures. In Outlook for Web (outlook.com or Microsoft 365): click the gear icon (Settings) → View all Outlook settings → Mail → Compose and reply. In newer Outlook versions you can also find Signatures under Settings → Signatures. The signature management dialog opens — create, edit, delete.

2

Create a new signature

Click "New" in the signature editor, enter a name (e.g. "Business", "Personal") and click OK. The editing area opens — write or paste your signature content. You can use formatting (bold, italics, color), links, images and tables.

3

Add company info and logo

A professional signature contains: full name, position/title, company name, phone, email and website. To add a logo: click the insert-image icon, pick the logo from your computer (recommended size 150-200px wide, PNG or JPG). Tip: embed the logo as an image, not as an attachment, so every email does not carry one. You can also add links to social networks (LinkedIn, Facebook, Instagram) via small icons.

4

Set as default signature

In the "Choose default signature" section, pick the email account and assign the signature for new messages and replies/forwards. The signature now appears automatically in every new email.

5

Test across devices

Send a test email to your private address (Gmail, Yahoo) and check how the signature looks. Open the email on phone, tablet and different email clients. Common issues: logo too large on mobile, broken links, formatting falls apart in Gmail. Fixes: use inline CSS instead of external, limit width to 600px, test in an HTML editor before applying. For consistent appearance across clients, use a table for layout.

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FAQ

Answers to the most common questions about our services.

In the signature editor click the insert-image icon (Insert Image). Pick the logo from your computer in PNG or JPG format. Recommended size: 150-200px wide and 50-80px tall. For better compatibility, host the logo on your website and use the image URL instead of embedding — this prevents the logo from appearing as an attachment. In HTML signatures use: .

Gmail and other email clients render HTML and CSS differently. Gmail does not support many CSS properties, strips external styles and sometimes changes the font. Fix: use inline CSS (style attribute on elements), tables for layout instead of divs, standard web-safe fonts (Arial, Verdana, Georgia) and limit width to 600px. Avoid CSS float, position and media queries.

Yes, Outlook supports multiple signatures and lets you assign different signatures to different email accounts. In Settings → Signatures, create multiple signatures (e.g. "Business", "Personal", "Short"). Then under "Choose default signature" pick the email account and assign the appropriate signature for new messages and replies/forwards.

For an advanced HTML signature, create an HTML file in an editor (VS Code, Notepad++). Use a table (

) for layout with inline styles. Once satisfied with the look, select all content in the browser (Ctrl+A), copy (Ctrl+C) and paste into the Outlook signature editor (Ctrl+V). Alternatively, use free signature generators like MySignature.io, HubSpot Email Signature Generator or WiseStamp which generate HTML automatically.

Yes, but minimally. A text signature adds only a few kilobytes. The issue arises with images: embedded images increase every email by the image size. The solution is to host images on your web server and reference them by URL — images are not sent with each email but loaded from the server. On BeoHosting you can host the logo in public_html/images.

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