Yahoo DNS / qmail issue re cnames

Discussion in 'qmail' started by qmail, Mar 8, 2010.

  1. qmail

    qmail qmail mailing list

    Mar 7, 2010
    Likes Received:
    We have customers who have their email hosted with
    Google Apps, i.e. they get the seven Google MX
    records set for their domain; we serve customer dns
    with tinydns. In the past week several of them have
    reported an inability to receive email from Yahoo
    senders who report bounces that show:

    CNAME lookup failed temporarily. (#4.4.3)
    I'm not going to try again; this message has been in the queue too long.

    As far as I can tell this is caused by running a version
    of qmail without the big-DNS patch. Running dnscache as
    the cache server sounds like it is also a fix. So perhaps
    they have mistakenly begun deploying mail servers built
    around qmail without big-dns or have just begun switching
    off dnscache (if they were running it previously).

    Has anyone else seen this or know of someone at Yahoo
    to contact about this type of issue? They appear to
    be as impossible to contact as google when you need help.

  2. popowich

    popowich EQ Forum Admin Staff Member

    Aug 12, 2008
    Likes Received:
    Re: Yahoo DNS/qmail issue re cnames

    There are a few contact forms available if you go to Postmaster | Yahoo! Postmaster Help and click the "Contact Us" at the top of the page.


Want to reply or ask your own question?

It only takes a minute to sign up (and it's free!). Click the orange sign up button to choose a username and then you can ask your own questions on the forum.