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.
Yeah, there’s a few things going on here with the ones I’ve received so far -
- no dmarc for the subdomain (lemmy.sdf)
- no spf record for the source (205.166.94.11)
- no dkim
I’m sure it’s early times, but this’ll end up in the spam folders of a ton of mail services with the header as it stands today.
Indeed. Currently all emails from this instance have been landing in my spam folder.
Do you have a link for applying to get off of protonmail.com’s blacklist?
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.
I see a SPF record for lemmy.sdf.org:
% host -t txt lemmy.sdf.org lemmy.sdf.org descriptive text "v=spf1 mx ip4:209.160.32.187 -all"From the header of recent mail I received:
Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=pass (policy=quarantine) header.from=sdf.org; spf=pass (aspmx1.migadu.com: domain of lemmy@lemmy.sdf.org designates 205.166.94.11 as permitted sender) smtp.mailfrom=lemmy@lemmy.sdf.org X-Spam-Score: -3.18
