Re: ISP blocking port 25, how to send mail from Iseries -- MIDRANGE-L

On my linux server, for some clients (those with Cox Cable internet) I have to allow port 26 so that they can send mail through my server because Cox blocks the sending of mail through 25. This is a hassle since most users don't know where the any key is... If our servers were on this ISP's lines we could have to have everyone use port 26 instead of 25.

We use CommuniGate Pro (www.stalker.com) which has an AS/400 port. The software's features are identical on almost all systems so it should allow for changes of port numbers for STMP. I couldn't see why your mail program couldn't do the same.


On Sep 29, 2004, at 9:40 PM, John Ross wrote:

After reading http://news.zdnet.com/2100-3513_22-5230615.html I understand what they are doing.

If your IP addresses is static maybe your mail ISP will allow relaying. You might also want to look at javamail.

I would be surprised if mail1.myisp.com:587 would work, I would think you would have to change SMTP with WRKSRVTBLE
John Ross
John Ross wrote:
I would double check the blocking of port 25 outbound. Blocking port 25 inbound would make since, but blocking port 25 outbound seams like that will decrease their business a lot. If they are blocking port 25 outbound to stop spammers from sending spam they are also stopping normal users from sending email. I would check if maybe your IP address was reported as a spammer and they blocked port 25 for just that IP address, I have heard of that. Maybe the IP addresses was reported as a spammer before you got the IP address, they might switch who has what IP addresses to stop servers also. John Ross Art Tostaine, Jr. wrote:
We used to send emails using our AS/400 SMTP server. Now, Cablevision in NJ blocking port 25 (Comcast did this 2 weeks ago)
We use another ISP to host our web server and email server, and in
outlook, we had to change to port 587 to reach the smtp server from
outlook.
So, is there a way to change the AS/400 to use that mail router?  I
was thinking of putting mail1.myisp.com:587, but I might need to use
Pop3 authentication before sending.
Anyone else doing this?
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