anybody seeing mail problems sending to yahoo.com? (and a yahoo email contact?)
Hi Folks, I run a few small email lists that have some yahoo users on them - and I just started getting complaints about receiving multiple copies of messages. In looking into it, I've found 1000s of log entries along the following lines, all from the past 5 days or so: Jan 4 09:23:51 server1 postfix/smtp[1462]: 3BA39CC094: lost connection with mta7.am0.yahoodns.net[98.136.216.26] while sending end of data -- message may be sent more than once It's not one of their standard anti-spam errors, and mail is arriving (multiple copies no less) - so it doesn't look like this is intentional blocking. So... I'm wondering if anybody else is seeing this, and if anybody has a postmaster contact at yahoo (postmaster@yahoo.com, of course, auto-replies with a pointer to a useless web form). Thanks, Miles Fidelman -- In theory, there is no difference between theory and practice. In practice, there is. .... Yogi Berra
Miles, I'm seeing it here too -- same conditions (small email list), same symptom. But interestingly, I'm not getting that message back from Yahoo's MXes; just a very high volume of of 'closed connection in response to end of data' and the usual occasional minor smattering of 'temporarily deferred due to user complaints'. Royce Williams On Sat, Jan 4, 2014 at 6:05 AM, Miles Fidelman <mfidelman@meetinghouse.net>wrote:
Hi Folks,
I run a few small email lists that have some yahoo users on them - and I just started getting complaints about receiving multiple copies of messages.
In looking into it, I've found 1000s of log entries along the following lines, all from the past 5 days or so:
Jan 4 09:23:51 server1 postfix/smtp[1462]: 3BA39CC094: lost connection with mta7.am0.yahoodns.net[98.136.216.26] while sending end of data -- message may be sent more than once
It's not one of their standard anti-spam errors, and mail is arriving (multiple copies no less) - so it doesn't look like this is intentional blocking.
So... I'm wondering if anybody else is seeing this, and if anybody has a postmaster contact at yahoo (postmaster@yahoo.com, of course, auto-replies with a pointer to a useless web form).
Thanks,
Miles Fidelman
-- In theory, there is no difference between theory and practice. In practice, there is. .... Yogi Berra
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
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.nethosts 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
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
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
On Sun, Jan 5, 2014 at 7:32 PM, F.L. Whiteley <techzone@greeleynet.com>wrote: I observe successful deliveries to outgoing requests for @yahoo.com, with no host abruptly disconnected. about 2% deferral errors such as "Site yahoo.com (66.196.118.240) said after data sent: 451 Message temporarily deferred - [70]"
NPR (USA) reports that ads on Yahoo Mail were java exploits loaded on Dutch servers infecting 27,000/hour.
hmm... http://arstechnica.com/security/2014/01/malware-attacks-thousands-of-yahoo-c... Interesting... while this is surely a bad thing. Anyone who still has Java installed and enabled in the web browser that is used is just begging to get their system owned+bugged, and to a lesser extent, those who still have Adobe reader browser plugins turned on..... it is much safer operating to just assume it has already happened, than to wait for the news. :)
Frank Whiteley
-- -JH
Based on a couple of responses saying that other people are seeing this, and I'm still getting these.... - anybody here from yahoo who might be able to respond? Or does anybody have a good contact at Yahoo's postmaster dept? Thanks, Miles Fidelman Miles Fidelman wrote:
Hi Folks,
I run a few small email lists that have some yahoo users on them - and I just started getting complaints about receiving multiple copies of messages.
In looking into it, I've found 1000s of log entries along the following lines, all from the past 5 days or so:
Jan 4 09:23:51 server1 postfix/smtp[1462]: 3BA39CC094: lost connection with mta7.am0.yahoodns.net[98.136.216.26] while sending end of data -- message may be sent more than once
It's not one of their standard anti-spam errors, and mail is arriving (multiple copies no less) - so it doesn't look like this is intentional blocking.
So... I'm wondering if anybody else is seeing this, and if anybody has a postmaster contact at yahoo (postmaster@yahoo.com, of course, auto-replies with a pointer to a useless web form).
Thanks,
Miles Fidelman
-- In theory, there is no difference between theory and practice. In practice, there is. .... Yogi Berra
participants (7)
-
Adrian Minta -
F.L. Whiteley -
Frank Bulk -
Jimmy Hess -
Miles Fidelman -
Royce Williams -
Scott Howard