Postfix 3.9.0-1 - Breaking changes

[technosf]

Noticed email dried up since early April - looking in the Postfix log file there are errors looking for BTREEs and HASHs table types which kills delivery.

postfix 3.9.0-1 went in on or around 2024-04-09 and along with it new package postfix-lmdb

Looks like postfix no longer had BDB or btree compiled in and, implicitly lmdb is the way to go.

Researching...

[karog]

Yes, this was described when installed. Here is the section from my pacman.log

[2024-04-08T08:37:47-0400] [ALPM] installed postfix-lmdb (3.9.0-1)
[2024-04-08T08:37:48-0400] [ALPM] warning: /etc/postfix/aliases installed as /etc/postfix/aliases.pacnew
[2024-04-08T08:37:48-0400] [ALPM] warning: /etc/postfix/main.cf installed as /etc/postfix/main.cf.pacnew
[2024-04-08T08:37:48-0400] [ALPM] warning: /etc/postfix/virtual installed as /etc/postfix/virtual.pacnew
[2024-04-08T08:37:48-0400] [ALPM] upgraded postfix (3.8.6-1 -> 3.9.0-1)
[2024-04-08T08:37:48-0400] [ALPM-SCRIPTLET] WARNING: Support for BDB hash: and btree: database types has been removed, the default database type is now lmdb.
[2024-04-08T08:37:48-0400] [ALPM-SCRIPTLET] Please update your main.cf configuration accordingly, and use postmap to convert existing databases.

[technosf]

Remediation steps -
In main.cf:
hash:/filename -> lmdb:/filename
btree:/filename -> lmdb:/filename

And regen files with:
postmap lmdb:/sourcefile

and for aliases:
postalias lmdb:/aliasfile


Also some new deprecation warnings to be aware of.