The email confirmation I received had this as a header from protonmail.com:
This email has failed its domain’s authentication requirements. It may be spoofed or improperly forwarded. Learn more
It worked fine, but I thought you should know.
The email confirmation I received had this as a header from protonmail.com:
This email has failed its domain’s authentication requirements. It may be spoofed or improperly forwarded. Learn more
It worked fine, but I thought you should know.
Do you know for sure you’re on it? Might just be the recent registration time of the subdomain… some mailservers are especially unenthusiastic about novel domain names, even subdomains, and then when they’ve seen enough mail from them in circulation they calm down a bit.