218 votesPeter Mienes commented
Don't understand that Airmail does not already have this: MailMate offers custom tags (but it has bad HTML support, which is why I've switched to Airmail).
32 votesPeter Mienes commented
And I would like to be able to change the name of the attachment when saving it. Now I have to subseqently use Finder to navigate to the directory where I let Airmail save the attachment and then change the filename.