I use email address suffixes to file emails to different folders. For example, email@example.com would be filed in folder "suffix". This works, but I would also like to allow for "-" as recipient_delimiter.
My understanding is that postfix allows for multiple separators. I can, for example, write
recipient_delimiter = +-
However, this does not work together with dovecot (v.2.2.27 on my system), which allows only for a single delimiter. Therefore I can either use "+" or "-", but not both at the same time.
I now wonder whether there is a possibility in postfix to rewrite a "+" to a "-", or vice versa, before it is handled by dovecot.