What is Exclaimer and why should every business use central email signatures?

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Short answer: Exclaimer is a cloud service that applies one consistent, professionally designed email signature to every message your staff send, on any device. You design it once, it updates itself from your Microsoft 365 user directory, and nobody has to copy and paste HTML again.

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One designUpdate the brand once and every user changes instantly
Every deviceOutlook on Windows, Mac, web and mobile
Legal textDisclaimers and company details added automatically

Why central signatures matter

Problem with DIY signatures What Exclaimer does
Every person has a different layout, font and logo One approved template for everyone, or one per team
Phone and tablet emails go out with no signature Signature is added to mobile and webmail messages too
Staff change job titles and numbers, signatures go stale Details pull from Microsoft 365 so they stay current
Legal wording is forgotten or inconsistent Disclaimers and regulatory details applied automatically
Marketing cannot promote anything in everyday email Banners can be scheduled by team, with click reporting

Server-side or Outlook add-in

Method How it works Best for
Server-side (Exchange Online) Signature is added after the email is sent, so it appears on every device Making sure no message ever goes without one
Outlook add-in Signature appears while the user writes, and they can pick from the options assigned to them Teams that want to see and choose their signature
Both together Add-in for convenience, server-side as a safety net Most business set-ups

Rolling it out

  1. Agree the designLogo, fonts, colours, social links and any legal wording.
  2. Connect to Microsoft 365We link Exclaimer to your tenant so user details sync.
  3. Assign by teamDifferent templates for sales, support or directors if you want them.
  4. Test with a pilot groupSend tests to major mail apps and phones.
  5. Go live and maintainStaff changes flow through automatically; we help with updates.
Did you know? UK limited companies must show their registered name, company number, place of registration and registered office on business emails. A central signature is the easiest way to make sure that always happens.
Trademarks. Exclaimer is a trademark of its owner. Product details are summarised from public information and can change, so always check the vendor for current features. ABCOM is an independent IT provider.

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