HOW TO CLOSE AVAST ANTIVIRUS SOFTWARE
AV vendors don't always play nice, and don't always adapt their software to new versions of other software on your computer, whether you know it or not they do make accommodations under the hood for how they interact with other software. Yes even if Thunderbird is the only software affected, even if your AV version did not change. Antivirus and Thunderbird have a complex relationship, and that relationship can be broken by updates or version changes of either software. But this is NO guarantee it is working correctly now. Warning: Your antivirus software probably worked great for months or years, across many previous versions of Thunderbird. I even tried disabling my antivirus software. Thunderbird is the only program that is affected. My Antivirus software has been working great.
HOW TO CLOSE AVAST ANTIVIRUS WINDOWS
9.2 Solution: Disable Windows System Proxies.9.1 Problem:Windows System Proxy blocking HTML images anecdote.9 Bogus Windows System Proxies Left by Malware.7.4.5 AVAST blocks images in HTML email.7.4.4 Avast Blocks Sending and Receiving.
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7.4.3 Avast 2015 causes invalid mail server certificate warnings sending/receiving mail.7.4.2 Hangs with "Allow anti-virus clients to quarantine individual incoming messages".7.4.1 Slowness and errors with nsemail.HTML.7 Configuration Notes and Solutions for specific Anti Virus products.5 Problem Antivirus and Anti-Malware Packages.
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