McAfee Protocol Error

By neojoker
in Smart Home, Network & Security

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neojoker

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I'm working on a computer with Outlook Express, and whenever I try to send mail to someone on a different mail server/domain, I get an error (Protocol Error) from McAfee (I'm assuming the AV part). This is a brand new Dell, so I'm assuming it's the newest version of McAfee. However, when sending to someone of the same ISP/domain/server (you get the idea), the messages send fine. Any ideas?

When googling, it seems that a lot of people have trouble with McAfee, but most of the problems were based on sending attachments, which is not the case here. Please share some ideas if you have any.

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https://www.neowin.net/forum/topic/292729-mcafee-protocol-error/
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