Some emails from my mail server is seen as spam

Discussion in 'Server Operation' started by JimmiJames, Mar 14, 2008.

  1. JimmiJames

    JimmiJames New Member

    I have a mail server with postfix(no TLS), it's been working for 2 months but recently we've discovered that some ISPs are seeing our emails as spam. When we look at the logs, the emails are sent ok but never actually reach their destinators.

    I don't want to get in the specifics but in a general sense, what would be the reasons mail coming from my mail server is seen as spam by some spam filters?
  2. daveb

    daveb Member

  3. JimmiJames

    JimmiJames New Member

    Look like it might have to with reverse DNS, the PTR record is either incorrect or absent.
  4. Musty

    Musty New Member

    Servers with Dynamic IP are blocked by servers like hotmail. I am experiencing this problem as I have a dynamic IP and I am planning to purchase a static one to get around this.
    However, if you have a static IP, then you may need to try this wizard to get info on how to get your mails through to hotmail.

    Hope this helps!
  5. JimmiJames

    JimmiJames New Member

    Thanks, we have a static IP but the only problems we've had is with the biggest ISP in Quebec and 1 or 2 hosting companies in the US.

    I'm pretty sure that if we correct the PTR record everything will be fine...I think

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