All emails to are bouncing


Status Graveyard
Server Operations
9 years ago
3 years ago


(Reporter: Nelson Bolyard (seldom reads bugmail), Unassigned)




(1 attachment)

Created attachment 378996 [details]
sample bounced email

Every email I've sent today to has bounced back to me.
The bounce comes from 
It reports that some MTA named has rejected 
the message. 
I wonder if mail to gerv is really supposed to go to just forwards to one of gerv's private addresses... I checked the MX of the domain it forwards to, and the MX is indeed, so yes, I would assume mail is really supposed to go there.
Maybe the mails from bugzilla will get through, even though the mails from 
me did not, and Gerv will find out about the mail problem, and be able to 
do something about it.
I have learned that my mail service provider's (MSP's) MTA thinks that the 
MTA at (which is is a spammer, and 
so evidently my MSP's MTA refuses to honor any connections from it for any 

I gather that when I send my emails to Gerv, My MSP's MTA sends them to, which redirects them to mythic-beasts.  Evidently when it 
receives the RCTP-TO envelope header for the email from mozilla, mythic-beasts 
attempts to contact my MSP's MTA, and when that attempt is effectively refused, 
mythic-beasts then refuses to deliver the email.  is a web page that someone 
from mythic-beasts could visit to try to resolve the spammer accusation.
I just midaired with Nelson, attempting to post this (which basically came to the same conclusion he just did).

Based on the bounce message it looks like Nelson's mail server is rejecting Gerv's mail server when it tries to do a sender callback to verify that Nelson's email address exists.  The bounce message implies that Gerv's mail server is on a spam blacklist that Nelson's server uses.  Gerv's server refuses to accept mail from people it can't send mail back to.

I'm resolving the bug, as it doesn't have anything to do with Mozilla, but you can feel free to communicate with Gerv here until you get this resolved. :)
Last Resolved: 9 years ago
Resolution: --- → INVALID
Nelson: I got the test mail you sent about 20 minutes ago, but I can't reply to you. I get:

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:
    SMTP error from remote mail server after RCPT TO:<>:
    host []:
    553 Bogus helo b. <>

------ This is a copy of the message, including all the headers. ------

Return-path: <>

The fact that the problem has resumed tells me that, after mythic-beasts got 
themselves taken off of some RBL, they got put back on it.  My guess is that 
they've got a spammer sending spam through one of their servers and they 
don't know it. is Godaddy's set of SMTP and IMAP servers that use TLS.
Mail service over TLS is a premium price service, and it uses separate
servers (from Godaddy's normal email servers) that live in that domain.  
Godaddy seems very serious about stopping spam.  BTW, The page at the URL 
cited above lists the 4 different RBLs that Godaddy's servers consult.
Just FYI, I did try a couple of the multi-listing lookup services on mythic-beasts' IP address when I was looking at this the other day, and didn't find any hits at all for that IP on any of the common blacklists out there.  (Godaddy's list that we know it's on isn't included in any of those lookup services).
Mythic Beasts is a small company run by highly competent people, two things which makes it in the "least likely" category to have its servers being used by spammers. They are also highly responsive, in person, to requests for support. Here's the email I got from them at 10:09am UK time on the 22nd:


That mail server was briefly listed on the barracuda black list earlier this week but has been unblocked for several days now. I've done a blacklist check and of the 147 commonly used blacklists we aren't on any of them.

If he could find out which blacklist he thinks we're listed on we'll try and investigate, the secureserver page he linked to doesn't seem to be attached to any blacklist and looks like a spam site that gathers email addresses.

If you can confirm the blacklist that's blocking us, we'll happily attempt to resolve issues with them.

The obvious way for mythic-beasts to resolve this is to use the form provided
and communicate with Godaddy at
I'll vouch that =='s hosting division.  I used to have stuff hosted with them before I switched to Dreamhost for my personal stuff.

I'll also vouch that GoDaddy's hosting folks aren't exactly responsive and their business practices are just shy of being shady (among the reasons I quit hosting there).  Although it's been 4 years or so since I left them, and a lot can change in that time.
Product: → Graveyard
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