sdfpubnix

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Your email is not meeting standards. (self.sdfpubnix)

submitted 2 years ago by Raydude to c/sdfpubnix

6 comments fedilink hide all child comments

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.

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[–] david 12 points 2 years ago (1 children)

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.

[–] KonQuesting 4 points 2 years ago

Indeed. Currently all emails from this instance have been landing in my spam folder.

[–] SDF 3 points 2 years ago (1 children)

Do you have a link for applying to get off of protonmail.com's blacklist?

[–] SDF 3 points 2 years ago (1 children)

[–] david 3 points 2 years ago

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.

[–] otl 1 points 2 years ago

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