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New Member

ASA Email Logging Source Interface

I've got email logging for a few specific syslog messages working and sending to an email server on the inside network.  However, the source IP ends up being the DMZ interface.  Is there a way to force it to use the inside IP instead?

ASA Code Version 7.22

Inside Interface IP:  Mask:

DMZ IP:  Mask:

SMTP Server IP: 

Logging commands in config:

logging enable

logging list email-alerts message 106100

logging mail email-alerts

logging from-address

logging recipient-address level debugging

Thank you.


ASA Email Logging Source Interface

Hi Terry,

The ASA will automatically select the source interface based on the routing table, which is not a configurable option. This is by design as the ASA will only allow communication to an interface from hosts behind that same interface. In other words, the server won't be able to reach the inside interface if it is behind the DMZ interface.


New Member

ASA Email Logging Source Interface

I should have secified in my original post - the mail server is behind the inside interface not the DMZ.

ASA Email Logging Source Interface

Hello Terry,

So is the SMTP server on the inside??

Can you provide a show route from your asa?



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