Of course. A user can have quite a few email addresses by generating email aliases. You'll be able to increase up to 30 email aliases for each user. for i in `cat emails.txt`; do zmprov ma $i zimbraSignatureName “`cat signatures/$i`”; zmprov ma $i zimbraPrefMailSignatureHTML “`cat signatures/$i`”; zmprov ga $i zimbraSignatureId https://chancerifie.wikirecognition.com/775884/the_5_second_trick_for_zimbra_migration_service