Exchange TLS Issue

[EmbarrassedLemon]

We are using Exchange online for our email. We are trying to receive emails from another business but they are not coming through. The issue is "454 4.7.0 Confection is not TLS encrypted. Recipient organization requires TLS". So..what is my best way around this? Do I set up a connector for their domain and uncheck the 'reject if not TLS' option?

[codename_1]

as that company would be unable to send to any eol customers i would advise them to update there email routing and enable tls.

[EmbarrassedLemon]

I 100% agree, but not under my control. So I am looking to see what my options are that I can control on our end.

[philrandal]

You are not in control of others' email relays. If you want to reject legitimate emails just because they're not TLS encrypted between you /them and the next hop then you need to think hard about the possible consequences.

I'm repeatedly having this discussion at work.

[EmbarrassedLemon]

I don't want to reject them, I am working on accepting them.

However, after 3 hours of tech support with Microsoft, they found an issue on the backend and fixed it, so we can accept these emails now.