Help with NOQUEUE rejects

Hi, I’m seeing emails get rejected in the logs which should be getting through. Several like this (I changed the user’s email to emailredacted):

Dec 3 07:07:08 box postfix/smtpd[3182]: NOQUEUE: reject: RCPT from[]: 450 4.2.0 <>: Recipient address rejected: Greylisted, see; from=<> to=<> proto=SMTP helo=<>

and then others like this:

Dec 3 07:25:32 box postfix/smtpd[4904]: NOQUEUE: reject: RCPT from[]: 554 5.7.1 Service unavailable; Client host [] blocked using;; from=<> to=<> proto=ESMTP helo=<>

I’ve already whitelisted anything with in our postgrey whitelist, but, that doesn’t seem to be helping. If anyone can help me interpret these logs and has a idea on how to fix them, thanks!

You might have whitelisted them in the greylist, but they are still blocked by spamhaus so your server will not accept them

After a bunch of research this morning, I’m just now starting to understand the layers of spam / blocking / greylisting. Thanks!

I did this, and it worked

Now getting emails from that server, which is great. They are still sometimes being “identified as spam” and put in junk folder, but, at least they’re landing somewhere and I can move them to inbox. Also some of them are going straight to inbox.

So now that this domain is whitelisted from postgrey (which means no delay), and whitelisted from external spam block lists, is there a way to get it to always go to inbox?

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