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Enterprise Software Thread, Exchange 2003 not sending emails in Technical; Is the SMTP service running ? Is dns good? nslookup - does it see the mailserver?...
  1. #16
    pooley's Avatar
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    Is the SMTP service running ?
    Is dns good? nslookup - does it see the mailserver?

  2. #17
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    The only other thing I can think of is port 25 isn't open for external traffic ?

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    ive checked the isa server settings, port 25 is open both ways, and open on the council firewall, ive checked with Network Tools: DNS,IP,Email and we are not blacklisted and it can see port 25 as open, the smtp service is running and nslookup can see the mail server.

    the only thing i can see is we dont have a revers dns for our external ip.

  4. #19
    pooley's Avatar
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    If you click on a message in the queue, what error does it give?

    Drop to a cmd prompt on the mailserver and put in
    telnet maila.microsoft.com 25

    Does it connect, if not then port 25 is blocked.

  5. #20
    alunmjones's Avatar
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    it just says queued

    i just get
    Connecting To maila.microsoft.com...Could not open connection to the host, on port 25: Connect failed

    when i try from my main machine or the isa it works fine

  6. #21
    pooley's Avatar
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    That would suggest that your mailserver has no route configured to get out on port 25, but your main machine has.

    Re-check the rules in ISA, make sure you put the mailserver ip in and not your main machine ip when granting access over port 25.

  7. #22
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    ive tried smtpdiag again, it just fails to resolve the endpoints, but it can find them, when i try it on the isa server it works with no problems at all, something is blocking outbound port 25 from exchange server but not from the rest of the domain i cant think what though, has to be local to this server, i might try a re-install of smtp/exchange to see if it fixes it, ive contacted my support company to get the original disks

    im in the middle of using exmerge to backup my mailboxes to pst files, its going to take a while

  8. #23
    pooley's Avatar
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    What's local to the server? Antivirus ? 3rd party firewall?

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    whatever is causing the problem, im thinking it could be corrupt smtp, antivirus has the same settings on all servers and the isa firewall is set to send port 25 to it inbound and outbound, only smtp left really

  10. #25
    pooley's Avatar
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    If you reinstall Exchange 2003 over an existing Exchange 2003 installation, the database files and permissions remain intact. Maybe a quicker option ?

  11. #26
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    ill give that a go when i get the install disks

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    Try, install in the SMTP component again or create a new VS for SMTP and test using that

  13. #28
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    Exchange re-isnstalled, SMTP Reinstalled and im still stuck, i cant get out on port 25, even though nothing is blocking it, even had the support company remove the AV to test that, inbound is still fine, smtpdiag still gives me the same error, error 10060, im just stumped now, ive run a port scanner on the machine, it cant find anything other than smtp using port 25, it cant be corrupted as its been re-install, im really out of ideas except a format, wich will be a pain butting all of our websites back in/helpdesk/webemail/remote file access ect

  14. #29
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    Try changing the IP on the server, that way you can identify if it's the Machine or if its tied to the IP address.

    Still points towards AV or Firewall software installed on the machine

  15. #30
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    its tied to the IP adress, changing the IP address get everything working again, ive moved it to another ip address i had free and changed the settings on the isa server to the new ip address, its working now, still need to find and iradicate the port bind or the software thats causing it.

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