How to add signatures to only external or internal emails?

You can use one of the below methods to enable signatures to only external or internal emails.

Method 1: Enable email signatures for all users/groups

This option lets you apply signatures to every user in your Microsoft 365 tenant.

Click here to know the Exchange Online Signature configuration steps:

Set senders

Method 2: Add signatures to External emails only:

Check the ‘External recipients’ in the ‘Recipients’ tab under ‘Signature Rules’.

Signature to only external emails

Method 3: Add signatures to Internal emails only:

Check the ‘Internal recipients’ in the ‘Recipients’ tab under ‘Signature Rules’.

Signature to only internal emails

 



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