Just like in Thunderbird. When I reply to an email, the emailaddress should be added to a txt-file on my SD-Card.
When I compose a new Email, those emailaddresses should be automatically displayed, like the ones from the normal addressbook.
Using a seperate txt-file on the sd-card has the advantage, that I can manually alter the entries AND that my regular addressbook doesn't get to overcrowded.
That would be so cool.
Important would be:
1) Do NOT use the standard Google-Addressbook
2) Use a db, that will only be used Aquamail
3) Make it editable (yeah, csv on SD-Card would be gr8)
4) By editable I mean: Delete, Add, Modify ;-)