Ever since Yosemite if you create an email signature that contains an image and you have multiple email accounts, when you swap from account to account the email signatures duplicate each other instead of replacing each other.
EG:
Email account 1 with Signature 1
Email account 2 with Signature 2
Compose and email with account 1 and you get signature 1. Now change the account to B before you send it and you get signature A & B, then change it back and you now have signatures A & B & A.
Change it a few times and you end up with 20-30 signatures on the email!!
EG:
Email account 1 with Signature 1
Email account 2 with Signature 2
Compose and email with account 1 and you get signature 1. Now change the account to B before you send it and you get signature A & B, then change it back and you now have signatures A & B & A.
Change it a few times and you end up with 20-30 signatures on the email!!