[Dovecot] User authentication fields size limit

Hello

I'm using authentication via SQL, and I'm storing the full mail_location in the database. This is a long string because we're using multiple partitions and hashing to create this path. It looks like this:

# doveadm user andre=sneakymustard.com userdb: andre=sneakymustard.com password : $1$ixW87UeD$fLhORaJS0c5wNFmWqfJdI1 mail : mdbox:/var/spool/imap/partition7/11/andre=sneakymustard.com:INDEX=/var/lib/imap/user/11/andre=sneakymustard.com quota_rule: *:bytes=1024M

Depending on the user's email, this string can be even longer. What I've noticed is that it is truncated when it reaches 128 bytes.

Could this size limit be increased?

Thanks, Andre