Exim blocking emails

[intrepid]

Hello,

I have a hosting client who has been telling me that they weren't getting emails from a few of their specifc clients. It was really weird - most of their clients could send them email - it got to the point where she needed to have that one client send her email to her home email address. I couldn't figure it out.

But now I have stumbled upon the issue myself. I use PHPMailer (1.73) to send out emails and they successfully arrive at my Yahoo.com and other accounts - but not my fireballgroup.com address, hosted here at HG.

I figured it out that the problem has something to do with the header.

How is HG configuring their Exim process so that it would silently discard emails based on the header?

[GatorChad]

How many emails are you sending out with PHPMailer per hour would you say?

[intrepid]

Hi GatorChad,

I'd have to say I send about 1 every 4 hours maximum. It could be SPAM related - how does exim label mail as spam? My spam assassin is turned on - but its not being consumed there.

Specifically I've figured out that if I send the mail out without a 'from address' defined - geoff@fireballgroup.com gets the mail (which means the email comes from 'nobody'). However, if I assign the 'From Address' geoff@fireballgroup.com doesn't get it. Its not mailbox specific - its fireballgroup.com-wide.

The one thing I thought it might be is that exim is trying the validate the 'from address' on the email or something - but that check should pass...

[intrepid]

As a follow-up - the code I am using works fine if I connect to the mail.fireballgroup.com mail server on port 26 with authentication.

But when I use the same code to send thru a different mail server (thelocalguru.com) it won't get to geoff@fireballgroup.com - no matter that it will go to my other email accounts on other servers.

[intrepid]

I tried emailing geoff@fireballgroup.com from my feedback@thelocalguru.com address and this is what I get as a bounce:

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

  geoff@fireballgroup.com
    SMTP error from remote mailer after RCPT TO:<geoff@fireballgroup.com>:
    host fireballgroup.com [70.84.139.138]: 550-Verification failed for <feedback@thelocalguru.com>
    550-No Such User Here
    550 Sender verify failed

What are you guys filtering on? I even tried to send from geoff@fireballgroup.com to feedback@thelocalguru.com and it fails with the same error - no such user, feedback@thelocalguru.com. I swear the user exists! Is it fireballgroup.com / thelocalguru.com's fault this email is not working?

[intrepid]

I had thelocalguru.com setup on the same server as fireballgroup.com - hence the problem. I removed the account and all is fine. I didn't think that the local dns was setup and checked by the mailserver - alas the things you learn