Recent Questions - Server Fault

I stuck with not starting saslauthd service after upgrade Ubuntu to 24.04 (it runs along with Virutalmin). So i can't authenticate to smtp (cant send mails, but still can recieve) due to error: 454 4.7.0 Temporary authetnitaction failure: generic failiure

I was trying to run saslauthd service by (systemctl status saslauthd shows service as: inactive (dead)): systemctl ...

I am trying to upgrade several physical servers from RHEL 7.9 to RHEL 8.6 offline. So far the process was successful on 1 server. On the server that I have the issue everything works fine and when I reboot the server it goes to emergency mode. Rebooting from emergency mode I can go back to the server's current operating system (RHEL 7.9).
Running:
leapp preupgrade --n...

Running an Ubuntu 24.04 LEMP server here with postfix/spamassassin/dovecot/amavis. In my dmesg logs I am getting some errors that I don't understand, and cannot figure out how to fix them. Here are the errors:

I was reading about SMTP , then I came across this issue.

SMTP protocol on server side , during a session, expects commands in order .i.e., DATA cannot be accepted without first accepting one RCPT TO. But SMTP sessions are independent as one session do not affect another session.

So, in general , is SMTP Stateful or Stateless protocol?

Anyone out there doing iSCSI offloading using Broadcom BCM57810 10 gigabit ethernet cards?

2 x Dell Force 10 S4810 switches