Re: Not receiveing outside email

From: Lanwench [MVP - Exchange] (lanwench_at_heybuddy.donotsendme.unsolicitedmail.atyahoo.com)
Date: 10/02/04

  • Next message: Arif Bijle - bijleai_at_alj.com: "Message Queuing on Front End Server" 
    Date: Fri, 1 Oct 2004 23:38:28 -0400

    mardub wrote:
    > Outside mail is not being forwarded to my port 25. DNS report is
    > telling me that my port 25 is closed for receiving email to my
    > server. We can telnet within our office but cannot telnet outside our
    > office. Send me an email at mrussell@duboisengrs.com and it will give
    > you a return error.
    >

    I just did a lookup at dnsreport and it isn't saying it can't connect:
    http://www.dnsreport.com/tools/dnsreport.ch?domain=duboisengrs.com

    I can telnet to it, too.

    DNSreport does say you're an open relay. Have you changed something since
    you last posted? Don't change your relay settings - perhaps you just needed
    to fix changes inadvertently made made to your connection settings. Fix the
    changes you made to your relay settings...undo them.

    > "Lanwench [MVP - Exchange]" wrote:
    >
    >> mardub wrote:
    >>> I recently installed exch server 2003 on windows 2000 srvphk 3
    >>> machine.
    >>> did not receive any errors during installation. We receiving mail
    >>> when I noticed that I was being used as a relay. I stopped the SMTP
    >>> virtual serverand stopped the relay.
    >>> Since that time I am not able to send and receive email. DNS reports
    >>> that it cannot connect to our email server. Checked the domain name
    >>> and the mx preference = 10
    >>> My server is pointing to my static ip address from my ISP.
    >>> No errors in event viewer.
    >>> Email is sitting in the mailboxes but not being delivered to
    >>> workstations. Cannot receive outside mail.
    >>>
    >>> Please help
    >>
    >> Did you restart the virtual SMTP server? If it isn't running, you
    >> can't send/receive any email through it.
    >>
    >> Regarding relay:
    >> E2000/2003 out of the box are not an open relay, so unless you
    >> changed that, you aren't. However, authenticated relay is allowed by
    >> default. See http://www.vamsoft.com/orf/authattack.asp
    >>
    >> If you don't have strong/complex password policies enabled, force
    >> regular password changes, have enabled guest, etc., someone may
    >> exploit authenticated relay. If you don't need authenticated relay,
    >> disable it. You can always have any external POP users use their own
    >> ISP's SMTP server for outbound mail anyway.
    >>
    >> See http://www.msexchange.org/tutorials/MF005.html for a good
    >> overview of relaying and spam.

  • Next message: Arif Bijle - bijleai_at_alj.com: "Message Queuing on Front End Server"

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