Hi Thomas,
On 28 Aug 2013, Thomas Vogt wrote:
There was an attack and maybe it has amplified this issue but so far
the root cause of the problem was a strange behavior of the bluewin MX
load balancer (LB).
Thanks for sharing this information with us.
Regards
Oliver
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On Wed, Aug 28, 2013 at 9:35 AM, Michael Richter mrich...@sasag.ch wrote:
mrichter@CL-LINUX-3OG-MR:~$ telnet mxzhh.bluewin.ch 25
Trying 195.186.227.50...
Connected to mxzhh.bluewin.ch.
Escape character is '^]'.
421 4.4.5 Service unavailable, concurrency limit reached.
Connection closed by
Yep, seeing the same error messages in our logs:
195.186.99.50 [06B0] 10:01:08 Client session 421 4.4.5 Service
unavailable, concurrency limit reached.
Regards,
Mike
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Mike Kellenberger | Escapenet GmbH
www.escapenet.ch
+41 52 235 0700/04
Skype mikek70atwork
Am 28.08.2013 09:35, schrieb
On 28 Aug 2013, Michael Richter wrote:
Trying 195.186.227.50...
Connected to mxzhh.bluewin.ch.
Escape character is '^]'.
421 4.4.5 Service unavailable, concurrency limit reached.
We see the mail queues growing with undeliverable mails for bluewin.ch.
The same also happened on monday before
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On 08/28/13 11:02, Oliver Hitz wrote:
On 28 Aug 2013, Michael Richter wrote:
Trying 195.186.227.50... Connected to mxzhh.bluewin.ch. Escape
character is '^]'. 421 4.4.5 Service unavailable, concurrency
limit reached.
We see the mail queues
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