Ok this is getting frustrating.
For the third time a customer has suddenly lost the ability to send or recieve mail. This despite no administrators touching the server for any reason at all.
The problems that shows up in the log is:
May 17 11:10:37 membermail postfix/smtpd: warning: 64-60-7-226.cust.telepacific.net[220.127.116.11]: SASL LOGIN authentication failed
Oddly it seems to only affect this domain.
The last couple of times I was able to fix this using the forums but this time I cannot seem to find the solution. Everything that I try fails.
The questions are:
1. Where do I go from here in terms of fixing it? Is their a workaround for this problem? What causes this?
2. Why does this keep just randomly happening? The server will run fine for a month and then suddenly one day they will be unable to send or recieve mail at all.
Thanks for any help at all.