Cisco ASA command - mail to/from Postini network range

Posted on 2007-10-13
Last Modified: 2013-11-16
I have a Cisco ASA 5505. What is the command and/or the place in ASDM to configure sending  and receiving mail only from Postini's network range? (


Question by:Trevor Local

    Author Comment

    by:Trevor Local
    Oh, need the command to only allow mail sent from my mail server IP too. thanks!
    LVL 3

    Accepted Solution

    If External mail server ip = and Internal mail server ip = then....

    access-list outside_access_in extended permit tcp host eq smtp
    access-group outside_access_in in interface outside

    access-list inside_access_out extended permit tcp host eq smtp
    access-list inside_access_out extended deny tcp any any eq smtp
    access-list inside_access_out extended permit ip any any
    access-group inside_access_out in interface inside

    You would obviously need to change  little depending on what you have already and if the mail server is located on inside/dmz etc.

    Author Comment

    by:Trevor Local
    I am setting up this one to take the place of my SonicWall. Then I will be migrating to a dual firewall configuration with ISA in the DMZ pointing to FE/BE mail servers on the inside. (both will be ASA 5505's)

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