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Thread: Postfix to relay through a different mail server for certiant hosts

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  1. #1

    Postfix to relay through a different mail server for certiant hosts

    So AOL recenlty changed something:
    Code:
    550-The IP address you are using to connect to AOL is an IP address owned
    550-by ATTBI/Comcast and is either open to the free relaying of e-mail,
    550-is serving as an open proxy, or is a dynamic (residential) IP address.
    550-AOL cannot accept further e-mail transactions from your server until
    550-either your server is closed to free relaying/proxy, or your provider
    550-removes your IP address from their list of dynamic IP addresses.  For
    550-additional information, please visit http://postmaster.info.aol.com
    550-or contact your network support organization at
    550-security_ldc@cable.comcast.com.
    550 Goodbye
    and i'm not gonna be able to get attbi/comcast to put my ip on the static list.

    So I'm thinking if i can have postfix use mail.attbi.com for all mail to @aol.com then it'd work again, and i'd still have my own mail server.

    But how would I go about this? I run my own DNS server to, so I guess I could put mail.attbi.com as the mx for aol.com but it seems there'd be a better way.

    Thanks

  2. #2

    Re:Postfix to relay through a different mail server for certiant hosts

    never mind i found it:

    in /etc/postfix/transport
    aol.com smtp:mail.attbi.com

    then postmap /etc/postfix/transport
    then postfix stop
    then postfix start

  3. #3
    Senior Member
    Join Date
    May 2001
    Posts
    345

    Re:Postfix to relay through a different mail server for certiant hosts

    You're lucky you haven't had problems with DUL lists before now. Lots of big ISP's won't accept mail from you.
    Why you so set on running your own SMTP anyway? Why not have postfix forward it all through mail.attbi.com

  4. #4

    Re:Postfix to relay through a different mail server for certiant hosts

    i like seeing the mail be sent and having control on that level. and i've had no trouble with other isps aside from aol.

    my host is not an open relay, it's just cause it's a dynamic ip.

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