Adding Remoted 'Trusted' Senders?

[modem]

I have a question regarding the trusted senders feature in Exim. Is there anyway in DA or Exim to add a trusted senders server so that all email coming from/going to it is automatically trusted? The reason I ask is one of my domains still has email sent to Everyone.net which is still handling that webmail until I can get a suitable replacement on my own local server. Unfortunately a mailing list on my local server is unable to send email to the Everyone.net server as well as I am unable to send email to the mailing list from home because my ISP is port filtering port 25 to go through their smtp servers first.

Possible or not?

 

[nobaloney]

Perhaps I'm a bit confused. If your ISP is blocking port 25, how would setting up a trusted sender get around that?

Jeff

 

[modem]

I'm just thinking up ideas here mostly...

But my ISP (Frontiernet.net) has begun filtering ALL outgoing SMTP traffic to their email servers only. So what I have discovered is that when I send an email through my ISP's SMTP server, it strips my [email protected] address as the orginiating address and replaces it with my ISP's email address ([email protected]). While that is not an issue, what happens is that the rest of the headers still contain the other information I entered into outlook. My name, my servers email addres ([email protected]) and so forth.

So when inside of Outlook I send email FROM my @modemnet.net profile which must go through my ISPs server and the mail is aimed at someone else ON my server the email bounces back with the following error:

**********

This is the Postfix program at host relay04.roc.ny.frontiernet.net.

I'm sorry to have to inform you that your message could not be be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to <postmaster>

If you do so, please include this problem report. You can delete your own text from the attached returned message.

The Postfix program

<[email protected]>: host mail.modemnet.org[69.64.171.88] said:
550-Verification failed for <[email protected]> 550 Sender verify
failed (in reply to RCPT TO command)

**********

Correct me if I am wrong, but it seems like that email leaving my PC is going to my ISP's SMTP. The email then is sent from that server/ISP account to my modemnet.org server. The modemnet.org server sees the orginiating location on the citlink server and see's it's trying to coming from a modemnet account and is rejected back to the citlink/frontier server. From there the frontier/citlink server replies back to me with the above message.

I was wondering what to do or how to fix that. All of this is coming DIRECTLY from the result of my ISP port filtering port 25 to send ALL email through them and through my ISP email account.

 

[nobaloney]

Easy fix is to open another port. One that your ISP doesn't block.

Lots of posts on these forums.

Start here.

Jeff

 

[modem]

Thanks.

I followed the directions there and added the following line right above the "acl_smtp_rcpt = ..." and did a service exim restart.

daemon_smtp_ports = 25 : 125

But when I try to send email to it, it immediately comes back with the following error:

Your message did not reach some or all of the intended recipients.

Subject: test
Sent: 01/27/2005 2:26 AM

The following recipient(s) could not be reached:

'[email protected]' on 01/27/2005 2:26 AM
503 valid RCPT command must precede DATA


Did I do something wrong? I am using Exim 4.44.

 

[nobaloney]

What do you mean by "try to send email to it"?

The smtp protocol requires the following be sent in this order:

1) the ehlo (or helo) message

2) The "mail from" address (often called the "envelope sender)

3) The "rcpt to" address; the address the email is supposed to be delivered to.

4) The "data", the rest of the headers, then an empty line, then the email itself, followed by a "." followed by a return character, as the last line of the email.

The error is letting you know that whatever way you're attempting to send the email isn't sending the "rcpt to" address, but is skipping from sending the "mail from" address to sending the data.

Jeff