TMDA HOWTOs
Offical HOWTOs
TemplateHowto - shows how to customize your TMDA auto-responses through TMDA's template system.
TmdaOfmipdHowto - shows how you can use the tmda-ofmipd program to "tag" mail from your mail client.
VirtualDomainsHowto - discusses setup of TMDA in a virtual domains environment, using VPopMail and VMailMgr as examples.
User-contributed HOWTOs
TmdaPostfixPolicy - how to check tagged addresses from a Postfix policy.
SpamAssassin - various ways to use SpamAssassin with TMDA
TmdaFetchMailHowTo - How to use TMDA with fetchmail
TmdaPendingAsMaildirHowto - How to use TMDA with maildrop and a PHP script to create an IMAP viewable Pending maildir subfolder.
TmdaHashCashHowto - How to use TMDA with Hashcash
TmdaBouncedDeletePendingHowto - How to automatic delete pending messages where confirmation bounced