NPR (USA) reports that ads on Yahoo Mail were java exploits loaded on Dutch servers infecting 27,000/hour. Frank Whiteley -----Original Message----- From: Frank Bulk [mailto:frnkblk@iname.com] Sent: Sunday, January 05, 2014 4:46 PM To: 'Scott Howard'; Adrian Minta Cc: nanog@nanog.org Subject: RE: anybody seeing mail problems sending to yahoo.com? (and a yahoo email contact?) 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