Re: Cannot send mail out after default installation

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Michael,

It turned out that the problem only occurs when sending mail to AOL. I
don't have a problem sending to and receiving from our main company.

I did a DNS report and here's the errors that it found:

1) FAILURE: Reverse DNS entries for MX records ERROR: The IP of one or more
of your mail server(s) have no reverse DNS (PTR) entries/* (if you see
"Timeout" below, it may mean that your DNS servers did not respond fast
enough)*/. RFC1912 2.1 says you should have a reverse DNS for all your mail
servers. It is strongly urged that you have them, as many mailservers will
not accept mail from mailservers with no reverse DNS entry. You can
double-check using the 'Reverse DNS Lookup' tool at the DNSstuff site if you
recently changed your reverse DNS entry (it contacts your servers in real
time; the reverse DNS lookups in the DNS report use our local caching DNS
server). The problem MX records are:
XX.XX.XX.XX.in-addr.arpa [No reverse DNS entry (rcode: 3 ancount: 0) (check
it)]

2) WARNING: Mail server host name in greeting WARNING: One or more of your
mailservers is claiming to be a host other than what it really is (the SMTP
greeting should be a 3-digit code, followed by a space or a dash, then the
host name). If your mailserver sends out E-mail using this domain in its EHLO
or HELO, your E-mail might get blocked by anti-spam software. This is also a
technical violation of RFC821 4.3 (and RFC2821 4.3.1). Note that the hostname
given in the SMTP greeting should have an A record pointing back to the same
server. Note that this one test may use a cached DNS record.

mail.domain.com claims to be invalid hostname
'****************************************************0****0*********************20':
220
****************************************************0****0*********************20 ****200**0*********0*00


3) WARNING: Acceptance of abuse address WARNING: One or more of your
mailservers does not accept mail to abuse@xxxxxxxxxxx Mailservers are
expected by RFC2142 to accept mail to abuse.

email.impire.com's abuse response:
RCPT TO:<abuse@xxxxxxxxxx>
<<< 550 5.1.1 User unknown

4) WARNING: SPF record Your domain does not have an SPF record. This means
that spammers can easily send out E-mail that looks like it came from your
domain, which can make your domain look bad (if the recipient thinks you
really sent it), and can cost you money (when people complain to you, rather
than the spammer). You may want to add an SPF record ASAP, as 01 Oct 2004 was
the target date for domains to have SPF records in place (Hotmail, for
example, started checking SPF records on 01 Oct 2004).
--
Regards,

Andy


"Michael Jenkin [SBS-MVP]" wrote:

Hello,

Have you checked DNS is working correctly,

Is your SMTP connector sending email out to DNS or to a smarthost ?

Does your ISP allow you to make outbound port 25 connections ?

Thanks

gocrm wrote:

I have installed SBS 2003 R2 Premium successfully. Incoming email is working
fine via Exchange 2003. Outgoing email is not. The mail never reach
external receipient. What am I doing wrong?


--
Michael J. Jenkin MVP - SBS, MCP, Small Business Specialist, Senior
Systems Engineer
Visit http://www.mickyj.com

.

Relevant Pages

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    ... This is then probably because you IP does not reverse DNS to your Domain. ... Your server is probably called called localhost or the ... It is strongly urged that you have them, as many mailservers will ... SPF record Your domain does not have an SPF record. ...
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