SSL errors after zimbra upgrade to Patch 8.8.15_P42

[adamdudzik]

Hi,
after updating zimbra to Patch 8.8.15_P42, I have problems with Outlook working on Windows 7 computers.

In the Zimbra Connector logs:

Code: Select all

11-09-2023 14:39:51.399 |||O16 05DC MAIN      9C8||| ### WARNING ### Failed to obtain server cert. Error: 12019 @ Connection.cpp#1869[SaveCertAndCalcFingerprint()]
11-09-2023 14:39:51.399 |||O16 05DC MAIN      9C8||| ### ERROR ### Internal error loading the SSL libraries @ Connection.cpp#1961[Handle_WINHTTP_CALLBACK_STATUS_SECURE_FAILURE()]
11-09-2023 14:39:51.461 |||O16 05DC MAIN      9C8||| ### WARNING ### Detected asynchronous WINHTTP_CALLBACK_STATUS_FLAG_SECURITY_CHANNEL_ERROR -> converting to ERROR_WINHTTP_CANNOT_CONNECT @ Connection.cpp#7220[WrapWinHttpSendRequest()]
11-09-2023 14:39:51.523 |||O16 05DC MAIN      9C8||| ### WARNING ### Failed to authenticate @ SessionData.cpp#2196[UserSession::Auth()]
11-09-2023 14:39:51.523 |||O16 05DC MAIN      9C8||| ### ERROR ### AuthToken() failed, 80040115 @ SessionData.cpp#1208[UserSession::AuthToken()]
11-09-2023 14:39:51.523 |||O16 05DC MAIN      9C8||| ### ERROR ### Failed to check server version @ AutoUpdateDlg.cpp#517[CAutoUpdateDialog::isNewVersion()]

and that's all. Computers with windows 10 and 11 work without any problems. Is there any workaround or do I need to update Windows?

[Klug]

You might not have installed the Microsoft update that allows TLS 1.2 instead of TLS 1.0.

https://www.greengeeks.com/tutorials/ho ... windows-7/

[leading zero]

Is there any workaround or do I need to update Windows?

You should definitely upgrade. Windows 7 is End-of-life and hasn't received security updates from Microsoft for well over 3 years now.
Even if you purchased an "Extended Security Updates" plan, it ran out in January 2023.

[adamdudzik]

You might not have installed the Microsoft update that allows TLS 1.2 instead of TLS 1.0.

https://www.greengeeks.com/tutorials/ho ... windows-7/

thank you, that was it.

[adamdudzik]

Is there any workaround or do I need to update Windows?

You should definitely upgrade. Windows 7 is End-of-life and hasn't received security updates from Microsoft for well over 3 years now.
Even if you purchased an "Extended Security Updates" plan, it ran out in January 2023.

Yeah, I know but we have an application that only works under Windows 7 and that's a big problem for us. It's not up to me, I just have to maintain it