Hi, On my jessie-powered VPS I'm handling mail with Postfix and cyrus-imap-ssl.
From time to time, I find I'm unable to send mail from my Thunderbird MUA due to my credentials being rejected. this may happen multiple times per day, or only once weekly.
Restarting the cyrus-imap-ssl daemon on the server always resolves the issue, but, of course, is inconvenient. I can find no log records suggesting what’s happening, but then I don't really know where to look, or what to look for.
The mail server has very low traffic, and only 3 users. Can anyone please suggest a way forward to resolve this issue? -- Tony van der Hoff | mailto:t...@vanderhoff.org Buckinghamshire, England |