General discussion

Locked

Exchange not able to send to AOL

By MCPKen ·
My exchange server is not able to send email to AOL.COM. My users are able to receive email from AOL. When email is sent to AOL, it goes in the outbound mail queue and then leaves. But the AOL recipient receives no email. The event logs on the Exchange server say "a new SMTP connection has been made to host 205.188.156.164(for AOL.COM)." I need to find a solution for this. The person who provides the right solution will get all the points.

This conversation is currently closed to new comments.

79 total posts (Page 5 of 8)   Prev   03 | 04 | 05 | 06 | 07   Next
Thread display: Collapse - | Expand +

All Comments

Collapse -

Exchange not able to send to AOL

by Tony Hogan In reply to Exchange not able to send ...

Add a reverse DNS lookup record to your DNS servers for your mail server.
The site which the message is destined for is possibly using reverse zone lookups for security purposes. The Fully Qualified Domain Name (FQDN) of the Exchange Server computer does not match its InterNic-registered IP address; hence, the telnet session to the destination mail server is refused.


From MS Article Q198981:
Certain mail servers require specific additional Domain Name Service (DNS) records before allowing mail transfer. A Reverse Zone record needs to be created on the DNS server responsible for the source mail server's e-mail domain.

You can look up the reverse routing on the following link (first find out the IP address for the Exchange Servercomputer):

http://network-tools.com/2/
Put the IP address in the text box, and click the DNS Records radio button. This will give the result for the reverse lookup.

-Adding reverse DNS record:
The DNS server requires a PTR record in its in-addr.arpa domain, wh

Collapse -

Exchange not able to send to AOL

by MCPKen In reply to Exchange not able to send ...

Poster rated this answer

Collapse -

Exchange not able to send to AOL

by s_pat_p In reply to Exchange not able to send ...

America Online (AOL) uses its own e-mail system which does not comply with the Internet standards supported by Outlook. For additional information about this limitation, click the article number below to view the article in the Microsoft Knowledge Base:
Q243336 OL2000: AOL E-mail Service Is Not Available for Outlook Users

Collapse -

Exchange not able to send to AOL

by MCPKen In reply to Exchange not able to send ...

Poster rated this answer

Collapse -

Exchange not able to send to AOL

by fred_e944 In reply to Exchange not able to send ...

What format is mail being sent in? AOL has big troubles handling messages in Outlook Rich Text format.

Collapse -

Exchange not able to send to AOL

by MCPKen In reply to Exchange not able to send ...

Poster rated this answer

Collapse -

Exchange not able to send to AOL

by Discordia In reply to Exchange not able to send ...

Your messages are akmost 99% likely being blocked AOL's extensive spam filters. Two main possibilities:
1. If your mail server is 'open relay' (www.orbs.org for info) then AOL will consider your domain's messages spam. Ip restricted servers sometimes still come up appearing to be open rel. However, I don't think this is the issue in this case, since you're on an Exchange server. To test, try telnetting to your SMTP port and spoofing a message command-line like explained in the first post on the thread. If you can get it to go, then you're open, and that's what's blocking you.

2. Assuming that's not the problem, and if the domain is the one in your email address, there's a definite issue with the name server association. (sechristind.com fails NSLOOKUP, only www.sechristind.com or mail.sechristind.com come up with name server info. AOL does the reverse lookup based on the domain.com part of the email address. Contact your service provider or domain registrant.) If I was right about the domain,

Collapse -

Exchange not able to send to AOL

by MCPKen In reply to Exchange not able to send ...

Poster rated this answer

Collapse -

Exchange not able to send to AOL

by Gicu Artistu' In reply to Exchange not able to send ...

The mail delivery system is a connection based protocol (SMTP/POP). That means that before doing anything else the message sender needs to create a connection with destination system. In some cases (huge mail systems) have mail routers that disseminate the bulk of mail to different servers.
MS Exchange is a relay server (it needs a SMTP connection with DNS based SMTP server).
So, if AOL is your ISP (the SMTP connection is to your ISP usually) they may have another port for this mail-router so you should ask them about this.
If AOL is not your ISP then I don't see why you have that SMTP connection. Call your ISP and tell them your problem.
If you tried to use more than one Internet connections on Exchange that might cause some problems too.

Anyway the best way is to call you ISP and explain them your problem.

Luck.

Collapse -

Exchange not able to send to AOL

by MCPKen In reply to Exchange not able to send ...

Poster rated this answer

Back to Windows Forum
79 total posts (Page 5 of 8)   Prev   03 | 04 | 05 | 06 | 07   Next

Related Discussions

Related Forums