ZIMBRA with VPN service

[matchpointok]

I am running Zimbra Desktop 7.2.7 GA (build 12059) on OpenSuse Leap 42. Zimbra is configured as an IMAP connection. Zimbra was working cleanly until I purchased a VPN service called TorGuard. Zimbra receives messages cleanly but won't send unless I turn off the VPN service.

The last error message follows but I don't think it is related to my problem.

Product name: Zimbra Desktop
Product version: 7.2.7
Build ID: 12059
Release type: GA
OS Platform: Linux i386 4.1.26-21-default
Time of event: 2016-07-04 14:17:39
Error type: service.FAILURE
Item ID: 2
Error summary: Synchronization of folder '/Inbox' disabled due to error: Inconsistent UIDNEXT value from server (got 74338 but last fetched uid 74338)

----------------------------------------------------------------------------
Affected data - PLEASE REMOVE ANY SENSITIVE INFORMATION (size=0):
----------------------------------------------------------------------------

Any suggestions on how to fix this?

[PriteshGajjar]

Is your Zimbra server (ZCS) accessible when you are on VPN?
Are you able to telnet to 993 port on ZCS server?

[matchpointok]

This looks more like a question suitable for Zimbra Collaboration than Zimbra Desktop. I don't use TELNET so I may misunderstand your question. TELNET localhost 993 doesn't connect but I may misunderstand your question.

[PriteshGajjar]

I believe you configured ZCS account in ZD using IMAP, right? So you need to telnet to IMAP server and not localhost when you are running ZD in VPN.

[matchpointok]

telnet imap.cox.net 993 connected without a problem. I re-saved the configuration file and the problem disappeared. I have no idea why that worked but the problem is gone.

Thanks