Ralf Hildebrandt wrote:

Can dovecot's deliver deliver a mail to a certain subfolder within a user's mailbox?

Yes, it can.

I was thinking of something along the lines of:

deliver -m subfolder

But what is the correct syntax to deliver to "spam", subfolder of INBOX?

deliver -m spam < message.txt deliver -m INBOX.spam < message.txt It depends on your configuration; by default "seperator = ." - thus "INBOX.spam" But..., if Sieve plugin is used, this location is used as the "keep" action's default value. Script can override/chage it.

Uldis