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FS#925 — FS#4953 — Switch IMAP/POP3

Attached to Project— E-mail
Maintenance
pop3, imap, smtp (ns0)
CLOSED
100%
In order to guarantee the best performances, we prefer to unload the ACE of the SSL management.

We will therefore restart the services IMAP and POP3 on the mails.ha.

A cut off of a few seconds at maximum is to be expected.
Date:  Thursday, 10 February 2011, 19:04PM
Reason for closing:  Done
Comment by OVH - Thursday, 16 December 2010, 12:42PM

We think we have found the origin of the problem: when the SSl client requests the re-negotiation of the certificate,
the connection is disrupted by the ACE, which does not authorize it.


A case example:

...

RENEGOTIATING
13713:error:1409444C:SSL routines:SSL3_READ_BYTES:tlsv1 alert no renegotiation:s3_pkt.c:1102:SSL alert number 100
13713:error:1409E0E5:SSL routines:SSL3_WRITE_BYTES:ssl handshake failure:s3_pkt.c:539:
...

The connection is therefore cut off


Comment by OVH - Monday, 20 December 2010, 16:35PM

The limit of the base of the "sticky" was reached. We increased it.

That should solve the connection problem on ns0.


Comment by OVH - Wednesday, 22 December 2010, 16:21PM

We have identified another problem on the base of "sticky" on the ACE.
Some customers launched impossible connections on pop3/imap.
The problem is now resolved, we are closely monitoring the behaviour.



Comment by OVH - Friday, 24 December 2010, 15:29PM

The download of attachmentes via SSL on roundcube
does not work for some customers.

The download without SSL works correctly.


Comment by OVH - Monday, 03 January 2011, 17:06PM

We are always looking for the origin of the problem, which appears only on some very specific configurations:
IE 8, with SSL on roundcube.