Postfix authentication unavail

Can somebody tell me what does this mean, is it critical and how shall I workaround?

 postfix/smtpd[24930]: warning: SASL authentication failure: cannot connect to saslauthd server: No such file or directory

I have found some useful information on the issue here:
and here:

Namely I have created the path /var/spool/postfix/var/run/saslauthd, changed the group for this path to sasl and created a link from this path to /var/run/saslauthd. After reloading the saslauthd service I was able to authenticate Outlook SMTP connector to UCS (see my other topic regard this issue).

Now, after reboot this link get erased. I miss a lot regard Linux and Debian, but I guess this could be worked in a script. OK, the question is how I got there and how to repair this?

Maybe this might help:

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Great! Thanks a lot, mate!