cisco sa540 - ip alias - external ip showing dedicated wan not alias

Unanswered Question

Hello,


I'm trying to figure out why recipients of emails from my company show that the mail is coming from our dedicated wan ip instead of the ip alias setup thru the dedicated wan.


The domain is mail.unitechsubsea.com


The external ip address for the sa540, wan1 (no optional interface), is 82.134.79.122


The ip alias is 62.97.213.156


mail.unitechsubsea.com resolves to 62.97.213.156 for external dns yet it is reporting as the 82.134.79.122 for some recipients.


The mail server was never setup with the 82.134.79.122 ip so i don't think this is a dns cache issue.


What issue in the SA540 would cause the system to show as mail coming from 82.134.79.122 instead of the ip alias 62.97.213.156?


Thanks,


Alex                  

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