Help with NOQUEUE rejects

Maintenance
1

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 ec2-18-208-229-200.compute-1.amazonaws.com[18.208.229.200]: 450 4.2.0 <emailredacted@stoop.email>: Recipient address rejected: Greylisted, see http://postgrey.schweikert.ch/help/stoop.email.html; from=<service@cluster-10.mogonodo.com> to=<emailredacted@stoop.email> proto=SMTP helo=<cluster-10.mogonodo.com>

and then others like this:

Dec 3 07:25:32 box postfix/smtpd[4904]: NOQUEUE: reject: RCPT from o4.pro.revue.email[168.245.104.220]: 554 5.7.1 Service unavailable; Client host [168.245.104.220] blocked using zen.spamhaus.org; https://www.spamhaus.org/sbl/query/SBL423186; from=<bounces+7458214-2353-emailredacted=stoop.email@pro.revue.email> to=<emailredacted@stoop.email> proto=ESMTP helo=<o4.pro.revue.email>

I’ve already whitelisted anything with revue.email 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!

2

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

3

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 https://www.howtoforge.com/how-to-whitelist-hosts-ip-addresses-in-postfix

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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