[RndTbl] email-receive blacklist?
cstanners at gmail.com
Wed Apr 28 08:46:43 CDT 2021
It's putting the horse before the cart to look into blocklists etc before
the e-mail domain is correctly configured...
MX-VERIFY-CGI run for ``trevor at tecnopolis.ca''
Doing resolver lookup for T=MX domain=``tecnopolis.ca'' Questionable: NO MX
DATA: domain=``tecnopolis.ca'' We SIMULATE! Do have at least one MX entry
Category Host Result
dmarc tecnopolis.ca No DMARC Record found
spf tecnopolis.ca No SPF Record found
mx tecnopolis.ca No DMARC Record found
mx tecnopolis.ca DNS Record not found
mx tecnopolis.ca DMARC Quarantine/Reject policy not enabled
dns tecnopolis.ca SOA Serial Number Format is Invalid
dns tecnopolis.ca SOA Expire Value out of recommended range
On Wed, Apr 28, 2021 at 7:21 AM Trevor Cordes <trevor at tecnopolis.ca> wrote:
> So there are tons of "email-sending" blacklists out there.
> Are there "email-receiving" blacklists? Is that a thing?
> We're trying to get emails from Hilton Honors to our @tecnopolis.ca email
> address(es) and they just refuse to send to us. Even on the phone with
> support to triple confirm the email address it refuses to send to us.
> When I say refuses to send to us, I mean it won't even connect to port 25
> on our server. Just nothing, nada. It's not a greylisting or RBL problem
> on our side because it's not even opening a socket. I can tell, I have
> full access to the verbose mail logs and tcpdump.
> All other vendors seem to have no trouble sending to us. Just Hilton.
> The big email providers like gmail send to us perfectly fine. I've never
> seen anything like this.
> Now, I do have trouble sometimes with Akamai's *web* hit blacklist, though
> I'm mostly "good" with them now. People don't use Akamai *web* RBLs for
> outgoing mail servers, do they? Is that a thing? I don't see that as an
> Akamai product offering...
> Roundtable mailing list
> Roundtable at muug.ca
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