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DL mail routing to external contacts

suelizy asked
Last Modified: 2013-11-30
We have a DL with an external contact in it.
If I send mail to the DL, the external contact never receives it and I never get an ndr back.  When I look at the tracking on my ironport servers, it shows the external contacts domain receives the mail.  They say that they never receive it.  If I send mail directly to that same external contact, they do receive it.
Thanks for any help!
Watch Question

It sounds likely that your email to the distribution list is being filtered on the other end  by spm/virus checking. See if the external recipient can have the spam/virus logs checked for the email.
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