We are having problems with several ME users not being able to send mail to our mail server (Vircom's ModusMail 3). The problems all seemed to have started at about the same time June 25 or 26. When using Outlook Express or Outlook to send mail, the user gets an error 554 "transaction failed." We do not show the error on our mail logs. The user can receive mail, just not send.
We have tried a telnet session to our mail server on port 25, but they get the same 554 error--transaction failed. We have had them telnet to another server (not even ours) and they get the same error.
Some of the users have McAfee and others have Norton anti-virus. We have had them disable the mail scanning in both cases and it does not make a difference. The best we can determine, most are not using a firewall. One was using ZoneAlarm and we had them disable it. It did not make any difference.
All are dialup connections and can surf and receive email, just not send mail.
The problem has to be on the client end and not on the server, but we cannot determine the problem.
Was there an ME update around that time that could have caused the problem?
Or is there a virus update that would create this problem?
We have been chasing this problem for a week and have not been able to get it resolved.
Thanks,
Rick
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