ZCS 8.0.2 Proxy Issues with downloading large mails via pop

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phoenix
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ZCS 8.0.2 Proxy Issues with downloading large mails via pop

Postby phoenix » Fri Mar 01, 2013 5:16 am

[quote user="15216agd"]Any idea if should be possible to downgrade to verson 8.0.0 ?[/QUOTE]No, it's not nor should you ever try.


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Bill

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15216agd
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ZCS 8.0.2 Proxy Issues with downloading large mails via pop

Postby 15216agd » Sat Mar 02, 2013 9:18 pm

[quote user="10330phoenix"]No, it's not nor should you ever try.[/QUOTE]
OK, we don't know if this issue it's going to be fixed soon, so I'm thinking on reinstalling version 8.0.0 that doesn't have this problem. I know that is possible to migrate usernames, but could be possible to passwords ?
Thanks.
deugenin
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ZCS 8.0.2 Proxy Issues with downloading large mails via pop

Postby deugenin » Wed Mar 06, 2013 6:58 am

I think problem is about using Pop3SSL between Zimbra Proxy and Zimbra Mailboxes.
Client is using Pop3 to connect to Zimbra Proxy, but SSL is still using...
Is there any way to disable SSL communication between Zimbra Proxy and Zimbra Mailbox?


My log:

172.22.28.40 -> user

172.30.14.10 -> zimbra proxy

172.30.14.13 -> zimbra mailbox


2013/03/06 09:18:47 [error] 5573#0: *177420 SSL_read() failed (SSL: error:1408F119:SSL routines:SSL3_GET_RECORD:decryption failed or bad record mac) while proxying and reading from upstream, client: 172.22.28.40, server: 0.0.0.0:110, login: "", upstream: 172.30.14.13:995 (172.22.28.40:1134-172.30.14.10:110) (172.30.14.10:45745-172.30.14.13:995)
sviriyala
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ZCS 8.0.2 Proxy Issues with downloading large mails via pop

Postby sviriyala » Thu Mar 07, 2013 1:54 am

[quote user="deugenin"]I think problem is about using Pop3SSL between Zimbra Proxy and Zimbra Mailboxes.
Client is using Pop3 to connect to Zimbra Proxy, but SSL is still using...
Is there any way to disable SSL communication between Zimbra Proxy and Zimbra Mailbox?

[/QUOTE]
I have tried disabling SSL comm between servers as well, but still same issue persists. Also even if you bypass proxy and connect to the mailbox server directly, you get the error. And the surprising point is that even if you used clear text, you get SSL errors!
And AGD confirmed that the issue is present even on single server installation, with no proxy.
Refer to Bug 80563 I had raised.
Regards
Nimhs
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ZCS 8.0.2 Proxy Issues with downloading large mails via pop

Postby Nimhs » Wed Nov 27, 2013 11:51 am

Hello,
I have encounter the same problem. Disabling SSL to upstream from web admin don't seem to be really disabled.

Disabling SSL to upstream with zmprov solved the problem.
zmprov ms $(zmhostname) zimbraReverseProxySSLToUpstreamEnabled FALSE
Regards,

Sylvain Firmery
sviriyala
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Joined: Sat Sep 13, 2014 1:49 am

ZCS 8.0.2 Proxy Issues with downloading large mails via pop

Postby sviriyala » Wed Nov 27, 2013 12:40 pm

Hi Sylvain,
Is yours a single server or multiserver? ON what servers did you disable SSL to upstream? Mailbox servers? Proxy servers? or all servers?
Thanks
Nimhs
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Joined: Sat Sep 13, 2014 12:34 am

ZCS 8.0.2 Proxy Issues with downloading large mails via pop

Postby Nimhs » Wed Dec 04, 2013 4:05 am

I do this modification on a single server installation.

This command changes the nginx configuration so i think it should be done on proxy servers.
Regards,

Sylvain Firmery

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