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Email Issue - ASA

cisco.plus
Level 1
Level 1

Hi

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

2 Replies 2

manish arora
Level 6
Level 6

Please post :-

sh service policy inspect esmtp

Manish

joel.salminen
Level 1
Level 1

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

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