What is meta? ×
Meta Stack Exchange is where users like you discuss bugs, features, and support issues that affect the software powering all 127 Stack Exchange communities.

Tons of SMTP servers on the Internet include the "Sender Address Verification" (SAV) check.
The notification mails of Stack Exchange sites (SO, Meta, and probably all others too) do not pass that test (in this case the test is performed by smf-sav):

Sep 13 07:41:58 snap smf-sav[27873]: sender check tempfailed: , 69.59.196.214, mail1.stackoverflow.com, [00:01:00]

Since the SAV settings, and sometimes even whitelists, are often out of reach for the recipient, many users will not receive the notification mails.

I know that the sender e-mail for notification mails (like do-not-reply@stackoverflow.com, do-not-reply@meta.stackoverflow.com, et cetera) should not be replied to, but I don't think that denying the existence of them is not the nicest way to solve the not-replying option.

Note: I know that SAV is not always the most optimum solution to prevent spam, but it is a given that it is used a lot.

Edit 20100928:

The fix works only partially. You need to add the other "SE" do-not-reply addresses as well.

For example, the SMTP server at mail1.stackoverflow.com [69.59.196.214] does not accept do-not-reply@meta.stackoverflow.com as a valid email address.

Here are some log-file entries:

Sep 25 03:33:36 snap sm-mta-rx[6766]: NOQUEUE: connect from mail1.stackoverflow.com [69.59.196.214]
Sep 25 03:33:56 snap sm-mta-rx[6766]: o8P1XalG006766: Milter (smf-sav): init success to negotiate
Sep 25 03:33:56 snap sm-mta-rx[6766]: o8P1XalG006766: Milter (smf-grey): init success to negotiate
Sep 25 03:33:56 snap sm-mta-rx[6766]: o8P1XalG006766: Milter: connect to filters
Sep 25 03:34:56 snap smf-sav[27873]: sender check tempfailed: <do-not-reply@meta.stackoverflow.com>, 69.59.196.214, mail1.stackoverflow.com, [00:01:00]
Sep 25 03:34:57 snap sm-mta-rx[6766]: o8P1XalG006766: Milter: from=<do-not-reply@meta.stackoverflow.com>, reject=451 4.1.8 Sender address verification in progress
Sep 25 03:34:57 snap sm-mta-rx[6766]: o8P1XalG006766: from=<do-not-reply@meta.stackoverflow.com>, size=4427, class=0, nrcpts=0, proto=ESMTP, daemon=MTA-RX, relay=mail1.stackoverflow.com [69.59.196.214]

--jeroen

share|improve this question
    
I've probably been under a stone too long: Is StackExchange the rebrand of the generic StackOveflow? –  Jeroen Wiert Pluimers Sep 16 '10 at 16:45
1  
yup. StackExchange is the software behind sites like SO, SF, SU, and all of the new sites too. –  jjnguy Sep 21 '10 at 18:48
add comment

1 Answer

up vote 1 down vote accepted

Although this is literally the first time I have ever heard of anyone having this issue after over a year of sending emails, the "fix" seems harmless enough. I went ahead and created

do-not-reply@stackoverflow.com

as an email account on the domain.

share|improve this answer
    
Thanks. But your current solution only works for this particular email address, not for the do-not-reply addresses used by other SE sites. See my edit in the question. –  Jeroen Wiert Pluimers Sep 28 '10 at 8:06
add comment

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .