For Google Workspace and Microsoft 365
Design it once, push it to every Gmail and Outlook mailbox, and stop chasing people to fix their own.
Hi Jonas,
Thanks for the call today. The proposal is attached, and I'm happy to walk your team through it next week.
Best,
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Hello,
Please find the signed contract attached. Let me know if anything needs a second look.
Kind regards,
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Works where your team writes
10 layouts
Every layout is built for real inboxes. Add your logo and colours and it's ready.
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Hannah Keller Partner Keller Architects | ||||||||||||||
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Lena Hartmann Brand Designer Atelier Nord | |||||||||
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Daniel Weber CFO Halden Capital | |||||||||
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Hannah Keller Partner Keller Architects | ||||||||||||||
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Lena Hartmann Brand Designer Atelier Nord | |||||||||
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Daniel Weber CFO Halden Capital | |||||||||
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How it works
01
Choose one of 10 layouts, then add your logo, colours and links.
02
Save it as a template once. Everyone who joins later gets a correct signature from it.
03
One click deploys it to every Gmail mailbox. In Outlook, the add-in takes care of it.
Built for teams
Admins set the rules once. MailSign keeps every signature correct after that.
Logo, layout and colours stay locked. Names, titles and phone numbers stay editable, if you allow it.
Name
Lena Hartmann
Job title
Head of Marketing
Logo
Northwind Studio
Brand color
#057FFF

New people get their signature from the company default, with their real details.
Pull names, titles, phone numbers and photos from Azure AD or SFTP, so a promotion shows up in the signature too.
Every edit and every deploy, logged with who did it and when.
Built for real inboxes
A signature only works if it survives the trip. MailSign builds them the way email clients expect.
Signatures are built from tables and inline styles, the HTML that Gmail and Outlook render most consistently.
Admins push signatures to Gmail from MailSign and Outlook gets them through the add-in. No copy-paste, no broken formatting.
Contact icons load from MailSign's CDN and long links become short links, so the signature stays light and tidy.
Small details
Add a scannable QR code to any signature, so people can reach you straight from their phone.
Long campaign URLs turn into short, clean links that fit the signature.
MailSign is available in 9+ languages, so admins and teams can work in theirs.
Yes. Google Workspace admins deploy signatures to every Gmail mailbox from MailSign. Outlook users get theirs through the MailSign add-in, which is listed on Microsoft AppSource.
Not for Gmail: the admin deploys from MailSign and the signature appears. For Outlook, the MailSign add-in adds the signature.
Only the fields you allow. Admins choose which fields are editable, like name or phone number, and which stay locked, like logo, layout and colours.
Yes. The free signature generator lets anyone make a signature and copy it into Gmail or Outlook.
Make your signature free in a few minutes. Bring the whole team when you're ready.