Dear List
Using dovecot 2.1.7 with LMTP and exim4 I want to accept local parts regardless of their case.
Exim does all virtual alias handling and delivers the messages to dovecot LMTP addressed to the right mailbox name. This works well except for addresses which do not need to be resolved by exim and which do have the "wrong" case in the local part.
For example: There is a mailbox and a user on the mailsystem "example.org" called "user". Mails to "user@example.org" get delivered just as they should. If an incoming message is addressed to "USER@example.org" with upper case local part, exim passes the message to LMTP with the case unaltered (RFC 2821 conform), but LMTP fails with: LMTP error after RCPT TO:USER@example.org: 550 5.1.1 USER@example.org User doesn't exist: USER@example.org
How can I tell dovecot to deliver "USER" to the mailbox "user" aswell?
Thank you for your help.
Best regards, Adrian.
(I have tried to use %Ln and %Lu in mail_location setting with no success.)