RE: anybody seeing mail problems sending to yahoo.com? (and a yahoo email contact?)

["Frank Bulk" <frnkblk () iname com>]

It looks like yahoodns.net has a NULL MX record, so anyone who emails to a
host there will not get far.  

We saw these issues Thursday and Friday:
        Site yahoo.com (98.136.216.26) said after data sent: 399 TCP Read
failed (Connection was closed. after 16 seconds) 16 sec"
The next most frequent message is:
        Site yahoo.com (98.138.112.32) said in response to MAIL FROM (451
4.3.2 Internal error reading data)

Frank

-----Original Message-----
From: Scott Howard [mailto:scott () doc net au] 
Sent: Saturday, January 04, 2014 1:53 PM
To: Adrian Minta
Cc: nanog () nanog org
Subject: Re: anybody seeing mail problems sending to yahoo.com? (and a yahoo
email contact?)

I've seen others reporting this elsewhere too, so it's clearly a problem at
Yahoo's end.

Someone on the mailops list reported that disabling TLS for
yahoodns.net hosts fixed the problem so it may be worth trying that.

  Scott


On Sat, Jan 4, 2014 at 9:28 AM, Adrian Minta <adrian.minta () gmail com> wrote:

> I'm seeing the same thing:
>
> Jan  4 19:13:20 mail2 postfix/error[21241]: 8C9BD1F20045: relay=none,
> delay=30958, delays=30835/121/0/2.1, dsn=4.4.2, status=deferred (delivery
> temporarily suspended: lost connection with
mta5.am0.yahoodns.net[98.136.217.202]
> while sending end of data -- message may be sent more than once)
> Jan  4 19:19:44 mail2 postfix/smtp[21813]: 3993E1F20045: relay=
> mta7.am0.yahoodns.net[66.196.118.33]:25, delay=98,
> delays=0.58/0.03/46/51, dsn=4.4.2, status=deferred (lost connection with
> mta7.am0.yahoodns.net[66.196.118.33] while sending end of data -- message
> may be sent more than once)
> Jan  4 19:19:44 mail2 postfix/smtp[21813]: 3993E1F20045: relay=
> mta7.am0.yahoodns.net[66.196.118.33]:25, delay=98,
> delays=0.58/0.03/46/51, dsn=4.4.2, status=deferred (lost connection with
> mta7.am0.yahoodns.net[66.196.118.33] while sending end of data -- message
> may be sent more than once)
>
>
> --
> Best regards,
> Adrian Minta