Website redirecting when proxied

I’m quite puzzled, been working at this for a while.

I have a website setup for MTA-STS validation, which seems to work fine when not proxied by Cloundflare. The minute I turn the proxy status on, it returns a 301 response.

I’ve tried everything that I can think of, clearing the cache, etc.

I’m using Apache, and for testing purposes I’ve set up a ServerAlias in the same configuration file:

I have other website setup the same way, but this is the only one giving me trouble.

Any suggestions would be greatly appreciated!



Change your encryption mode to Full Strict.


Thanks! That worked.

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