I have an email server behind a UC540. I have turned on firewall set to MIN.
Once I did that i started to have an issue with my mail flow with error firewall #500
after doing some research I see that is a common probem with Cisco PIX firewalls.
Can anyone tell me how to disable this on the UC 540?
see links for docs i found below:
I'm having this same problem too, tried using the 'no ip inspect name SDM_LOW esmtp' command but I am still get the same error.
Looking forward to hearing from someone!
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