clueless4's profile

Regular Visitor

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5 Messages

Tue, Jan 5, 2021 7:00 AM

comcast email says not secure

why do my emails all of the sudden show not secure? How do i fix it?

Responses

BruceW

Gold Problem Solver

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22.4K Messages

5 m ago

If you are asking about webmail ( https://connect.xfinity.com/ ) the "not secure" warning is generated by your web browser and is due to the way most current browsers are designed and the content of the emails you view.

 

Whenever you use any provider's webmail to open an email that references a non-secure (loaded with "http" instead of "https") image, script, or other item, the browser warns you. In webmail, this probably happens most often if you have the setting for "Allow pre-loading of externally linked images" (gear icon / Email Settings / Security / Mail) checked. If you don't have that option checked, you're probably getting the browser warning when you open an email that has insecure content and you click the "Show images" button.


A secure web page that loads insecure content is said to be using "mixed content", and may be subject to a "man-in-the-middle" attack. Comcast seems to think this is not a problem, but Internet security experts think otherwise. See https://www.google.com/search?q=mixed+content+pages+MITM.

 

For reasons I've never seen an explanation for, once the "not secure" warning is tripped, it continues to be displayed until the browser is restarted or the page reloaded, even for emails that have no insecure content.

 

Regular Visitor

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5 Messages

5 m ago

Thank you for the information. Appreciated.

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