Remote Server return 553 5.1.8

We are getting intermittent bounces when we sent emails from our domain. When we send an email we get this message back, emote Server returned ‘553 5.1.8 <[email protected]>… Domain of sender address [email protected] does not exist’

Everything I search for says to check the MX and SPF records. We have them in place and they look correct.

Anyone have this issue happen out of the blue?

I am afraid that’s a topic better for StackExchange or Reddit, as Cloudflare does not handle email at all. If your SPF record is in place you should be fine and would need to check why your mail server does not accept emails. Maybe double check your MX records.

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