Problems delivering mail.

[ezanolin]

I have a adsl connection at my office. I use it only for local traffic to complement my diginet installation.

I do policy routing so that all 196.* pop3 and smtp uses the adsl connection. During the past week I have had a mass of undelivered email in my mailserver specifically to the telkomsa.net domain and a few other local servers.

Can anyone shed some light on the issue? Anyone got any similar experience?

 

[VQuest]

Telkom have admitted (strangely enough) to having mail problems for the past week or more, so this is <i>probably</i> the reason for your undelivered mail.


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United we stand!
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[caroper]

Me too.

Set your out going server (SMTP) too

smtp.saix.net

That is the most stable (so far).

I have just had bounces from Telkomsa, Mweb and Iafrica but saix went through.

As for why, I can't help you there, probably overload or reliability problems due to not spending enougth to support the user base.

Cheers
Chris

 

[musnit]

I set my smtp to smtp.saix.net and it worked[8D]

 

[ezanolin]

&lt;rant&gt;
Actually its smtp.dsl.telkomsa.net

I have been fighting with people at telkomsa for 3 days now and everytime after a 1 hour call I end up having to wait for someone higher to call me back.

My problem is I deliver directly and I dont use the telkom SMTP relay server because I dread any problems it may cause. Limited size attatchments, silent mail drops, delayed delivery etc...

I only deliver mail from my server. I dont recieve and no its not an open relay. Its purely a spooling thing. My diginet connection handles any non 196.0.0.0/8 port 25 traffic and my adsl handles all the 196.0.0.0/8 port 25 traffic.

As of last week (when telkom had their big mail problem) I have been unable to deliver to mail.telkomsa.net. My mail logs tell me that the server disconnected and when I telnet to port 25 of mail.telkomsa.net I get an escape charachter prompt and then get dropped. The Server has been configured to drop any connection from the 165.165(ADSL) range.

This is just not on. I can deliver fine to ANY other south african ISP. Telkom is going ahead and making assumptions again.

I suspect that this was done due to the fact that a lot of adsl users run win2000 which comes with iis installed which comes with a smtp relay agent installed. By default, a win2000 installation is an open relay, so is a XP installation with iis installed. Now if you try relay through smtp.dsl.telkomsa.net(like you should) the server does an open relay check on you first and then disconnects you if you have one.

WHERE IS ALL THIS DOCUMENTED???

I bought a service. I'm gatvol of all the limitations. Now I cant deliver mail to their server and their answer is "you should be using the smtp.dsltelkomsa.net server".

I'm not relaying!!!!!!
I'm delivering!!!!

&lt;/rant&gt;

 

[Andre]

<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by ezanolin</i>

My problem is I deliver directly and I dont use the telkom SMTP relay server because I dread any problems it may cause. Limited size attatchments, silent mail drops, delayed delivery etc...
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

We were doing this from the office but ran into a snag when mail started getting bounced. Some ISP's like AOL bounce mail from known dial up range IP's - yes, DSL users here are blacklisted.

<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">
I suspect that this was done due to the fact that a lot of adsl users run win2000 which comes with iis installed which comes with a smtp relay agent installed. By default, a win2000 installation is an open relay, so is a XP installation with iis installed. Now if you try relay through smtp.dsl.telkomsa.net(like you should) the server does an open relay check on you first and then disconnects you if you have one.
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

Possible. We use Exchange, but it's set to prohibit relaying and mail delivers fine via smtp.dsl.telkomsa.net.

I don't know if the above is of any help to you, but Telkom's server is working okay for us.