On 2011-07-05 22:46, Rostyslaw Lewyckyj wrote: > Recently my system has begun to issue the following error > when I try to send out emails on this account: > "Sending of message failed. An error occurred sending mail: > Unable to authenticate to SMTP server smtp.att.yahoo.com. > It does not support authentication (SMTP-AUTH) but you have > chosen to use authentication. Uncheck 'use name and password' > for that server or contact your server provider"
Since it was me who introduced this message and the SMTP evaluation mechanism I’m interested in this problem. The message is issued in two cases: 1. The server doesn’t greet with an extended HELO. Without this it isn’t able to advertise support of authentication mechanisms at all. 2. The server doesn’t list authentication mechanisms in the extended HELO greeting. So if you instructed SeaMonkey to use authentication for SMTP it will show the message if one of the two conditions is true. The interesting thing now is, why doesn’t it work sometimes and sometimes it does (only minutes later). I can think of two situations: 1. Your providers mail server pool contains some machines with auth support and some without and it’s by chance to which you get a connection. 2. The server or the connection is that faulty so that the EHLO greeting gets scrambled. There’s a way to find out though it’s not as easy as an always fail scenario. You can create a log file of your mail sending by following the instructions on https://wiki.mozilla.org/MailNews:Logging#Windows In your case use a batch file containing set NSPR_LOG_MODULES=smtp:5 set NSPR_LOG_FILE=%APPDATA%\smtp.log "C:\Program Files\SeaMonkey\seamonkey.exe" to start SeaMonkey (check the path above path for correctness on your machine) and look at the result when encountering the message (or send it to someone who’s able to interpret it). Note: No message content and no passwords are logged in the logfile. Bye, Christian _______________________________________________ support-seamonkey mailing list [email protected] https://lists.mozilla.org/listinfo/support-seamonkey
