We use McAFee EWS 5.6.
In fact we are facing a problem.
We cannot receive emails from one of our partner email domain named SUBEX.COM . But this partner tell us that their users receive our emails.
That I cannot understand, No inbound emails concerning this domain appear in McAfee EWS 5.6.
Please do you have an idea?
Thank you in advance!
do your partner see any error when trying to send you a mail?
Normally, if there is any filtering between you and your partner, and when they try to send you a mail, they should receive a non-delivery report of a failed delivery.
If your partner does not receive any nondelivery report after they sent you a mail, but you still do not receive it, then it is likely that you have such a filtering that accepts a mail but does not delivery it.
There is a quick and dirty way of troubleshooting that involves a connection from a remote end to your EWS and manually issue mail commands just as their mail server would do. This immediately would help determining if there is a block and in which phase.
A slower way involves verification of your appliance whether it is properly configured to accept mail from that domain. Then please verify your policies and determine which should trigger if a connection from that domain is established and try to determine if any part of that policy is to blame for any blocking.
In any case a look at the mail logs or syslog of the appliance after a test session from the remote partner is useful to see if your appliance says anything about that test session.
A decent detailed description of steps of what I above was trying to say is found e.g. here: http://community.spiceworks.com/how_to/show/11-test-email-flow-using-smtp-comman ds
Our network team has analyzed the traffic and they have confirmed that the emails coming from this domain reach the Appliance.
Do you have an idea why we don't see those emails in McAfee EWS 5.6?
What mode is the appliance operating?
I mentioned the syslog facility of the appliance. Please download the syslog after a test session from that domain to see how the appliance reacted. Please follow the entries in syslog from the first connection as far as the final acceptance (e.g. Mail is scheduled for delivery, etc.) or rejection.
Syslog normally must contain any traces of mail connection.