1. I am using Thunderbird mail client and setup SMTP with
authentication. When I send a message it takes quite long for it to go
through. The server logs are as follows:
Dec 22 17:13:28 server courieresmtpd: started,ip=[xxx.xxx.xxx.xxx]
Dec 22 17:13:29 server courieresmtpd: error,relay=xxx.xxx.xxx.xxx,msg="535
Dec 22 17:13:37 server courierd: newmsg,id=0024A81C.458C5891.000097C8:
I can't figure out what is causing the authentication error, as the email
eventually goes through without any further action on my part.
You may not be required to authenticate in the first place, from your IP
address, so you can proceed to send mail, unauthenticated.
You may not be able to authenticate either because you did not supply the
correct userid/password, or you've enabled CRAM authentication, but you are
storing encrypted passwords. CRAM authentication requires cleartext