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  • No incoming email from outside

    i'm trying to setup new configuration from a faulty firewall to a ASA 5505. All connection, Internet are OK. Outgoing email also OK. But internal user unable to receive email from outside. What setting I left out.

    outside : x.x.160.24
    inside : 192.168.100.250
    ------------------
    access-list outside_access_in extended permit ip host q.q.q.q host x.x.160.26
    access-list outside_access_in extended permit tcp any host x.x.160.26 eq smtp
    access-list outside_access_in extended permit tcp any host x.x.160.26 eq pop3
    access-list inside_access_in extended permit ip any any
    access-list incoming extended permit tcp any host x.x.160.26 eq smtp

    nat (inside) 0 access-list inside_nat0_outbound
    nat (inside) 1 0.0.0.0 0.0.0.0
    static (inside,outside) x.x.160.26 192.168.100.250 netmask 255.255.255.255
    access-group inside_access_in in interface inside
    access-group outside_access_in in interface outside
    route outside 0.0.0.0 0.0.0.0 x.x.160.25 1

  • #2
    Re: No incoming email from outside

    1. Can you telnet from the ASA to the mail server?
    2. can you telnet from the outside, to port 25 on the asa ?

    tthis should help you figure out where to look
    Please do show your appreciation to those who assist you by leaving Rep Point https://www.petri.com/forums/core/im.../icon_beer.gif

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    • #3
      Re: No incoming email from outside

      1. from console ASA, there is no command for telnet
      2. i able to telnet but is just show blank screen of the command promt

      any idea?

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      • #4
        Re: No incoming email from outside

        Uncheck the esmtp box in the screenshot.
        Attached Files
        CCNA, Network+

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        • #5
          Re: No incoming email from outside

          I couldn't fine like you ur screenshot but I found this and there is no config
          Attached Files

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          • #6
            Re: No incoming email from outside

            Originally posted by necro View Post
            I couldn't fine like you ur screenshot but I found this and there is no config
            Firewall --> Service Policy Rules --> inspection_default. Highlight then edit. Then "Rules Actions" tab.
            CCNA, Network+

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            • #7
              Re: No incoming email from outside (resolved)

              Dear all,

              Sorry for the late update but case have been resolved.

              Add these line and all work.

              static (inside,outside) tcp interface smtp mail smtp netmask 255.255.255.255
              static (inside,outside) tcp interface imap4 mail imap4 netmask 255.255.255.255
              static (inside,outside) tcp interface pop3 mail pop3 netmask 255.255.255.255

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