Email Issue - ASA

cisco.plus — Mon, 11 Mar 2019 20:15:49 GMT

Email Server is hosted at ISP, users outlook is configured with ISP SMTP and POP information. when the user sends email with more than 3 receipient address the email get stuck in users Email outbox. If the Email is composed with single receipient it works ok. If the user compose Email with 3 or more receipent from outside the company network or using a DSL connection it works perfectly well. On ASA user subnet is configured as NAT

nat (inside) 2 192.168.1.0 255.255.255.0

class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect rtsp
inspect esmtp
inspect sqlnet
inspect skinny
inspect sunrpc
inspect xdmcp
inspect sip
inspect netbios
inspect tftp

The issue is with ASA.

Any Help

Re: Email Issue - ASA

manish arora — Fri, 01 Apr 2011 18:35:56 GMT

Please post :-

sh service policy inspect esmtp

Manish

Re: Email Issue - ASA

joel.salminen — Wed, 06 Apr 2011 05:15:00 GMT

You can simply try turning off ESMTP inspection. That inspection engine has had a long history of interfereing with email.

topic Email Issue - ASA in Network Security

Email Issue - ASA

Re: Email Issue - ASA

Re: Email Issue - ASA