99% of all Outlook issues can be resolved with clean un/re-install of Avast…does not really take too long.
The issue centers around the outlook plugin getting corrupt.
See the how-to in my signature.
The latest Avast 2015 upgrade has disabled my Outlook 2007, as well. I can send mail but can’t download it. When using an encrypted connection, I get the error that my encryption method isn’t supported. Without encryption it says it can’t access my server. When I disable the shields everything works fine. I’m POPing 3 accounts and they all behave the same way.
I’ve tried running avastclear, rebooting, and reinstalling, but the results are the same. Everything worked fine before the upgrade.
I see a system tray warning saying Avast SecureLine Disconnected. That page in the UI says “SecureLine has encountered a technical issue. The online content is unavailable. Please, check your internet connection and try again.” My Internet connection is fine. Clicking Reload has no effect – the same error comes up. Turning off SecureLine has no effect. I’m not on a VPN, so I don’t know why I’d need this tool.
Turning off GrimeFighter (a previous culprit in this kind of problem) also has no effect.
P.S. Chrome also won’t run, even when all shields are disabled.
P.P.S. I got rid of the SecureLine error by rebooting, but still can’t POP my email.
P.P.P.S This is a 64 bit machine, but it’s a 32 bit version of Outlook.