Maildrop / Mail Delivery issues

Support
1

After an in-place upgrade, mail delivery is not working. The maillog shows this:

Aug 10 21:58:41 p1 postfix/postdrop[1473287]: warning: mail_queue_enter: create file maildrop/452479.1473287: Permission denied
Aug 10 21:58:41 p1 postfix/postdrop[1458780]: warning: mail_queue_enter: create file maildrop/527997.1458780: Permission denied
Aug 10 21:58:41 p1 postfix/postdrop[1444395]: warning: mail_queue_enter: create file maildrop/634320.1444395: Permission denied
Aug 10 21:58:41 p1 postfix/postdrop[1429823]: warning: mail_queue_enter: create file maildrop/696769.1429823: Permission denied
Aug 10 21:58:41 p1 postfix/postdrop[1415510]: warning: mail_queue_enter: create file maildrop/746639.1415510: Permission denied
Aug 10 21:58:41 p1 postfix/postdrop[1401001]: warning: mail_queue_enter: create file maildrop/875731.1401001: Permission denied
Aug 10 21:58:41 p1 postfix/postdrop[1386703]: warning: mail_queue_enter: create file maildrop/927634.1386703: Permission denied
Aug 10 21:58:41 p1 postfix/postdrop[1372451]: warning: mail_queue_enter: create file maildrop/988295.1372451: Permission denied
Aug 10 21:58:42 p1 postfix/postdrop[1358235]: warning: mail_queue_enter: create file maildrop/71014.1358235: Permission denied
Aug 10 21:58:42 p1 postfix/postdrop[1323484]: warning: mail_queue_enter: create file maildrop/195058.1323484: Permission denied
Aug 10 21:58:42 p1 postfix/postdrop[1344252]: warning: mail_queue_enter: create file maildrop/195118.1344252: Permission denied
Aug 10 21:58:42 p1 postfix/postdrop[1309277]: warning: mail_queue_enter: create file maildrop/345947.1309277: Permission denied
Aug 10 21:58:42 p1 postfix/postdrop[1295239]: warning: mail_queue_enter: create file maildrop/484602.1295239: Permission denied
Aug 10 21:58:42 p1 postfix/postdrop[1281090]: warning: mail_queue_enter: create file maildrop/484707.1281090: Permission denied
Aug 10 21:58:42 p1 postfix/postdrop[1266961]: warning: mail_queue_enter: create file maildrop/612368.1266961: Permission denied

I deleted the maildrop folder and restarted postfix, it recreated the folder but still fails with the same error. Any thoughts?

2

Also seeing the following for valid users:

(temporary failure. Command output: ERR: authdaemon: s_connect() failed: Connection refused /usr/bin/maildrop: Temporary authentication failure.)
3

dnf reinstall -y maildrop and perform a full platform scrub, upcp -sbf. A full platform scrub is necessary after performing an in-place upgrade, see Updating CentOS 7 to Alma/Rocky 8 in-place with Leapp