Topic: Outgoing mail rejected because HELO

[waldviertler]

Today I got an email error from a sent email:

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Hi. This is the qmail-send program at MYSERVER.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<a@email.at>:

80.64.136.100 does not like recipient.
Remote host said: 550 MYIP blacklisted at f563b0fb5a816b0087df8cfb5c8518cf.combined.mail.abusix.zone
Giving up on 80.64.136.100.

I looked at abusix.com/
and got this:

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Policy medium This is not a problem unless you are running an SMTP server on this IP.
But I run an E-Mail Server here!

Under help on abusix.com - I got this informations:

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If you have not set-up rDNS on this IP with your provider, we strongly suggest that you do so. The rDNS should reflect the hostname of the server and ensures that this IP receives your own domain reputation and not that of your provider.
If you have done this already, please note that it can take up to 4 days for us to scan the entire Internet and notice the updated rDNS.
If you use our lookup service to check this IP address, then this will force our scanners to check your address which will usually mean the IP will be automatically removed within the next hour once our scanners notice the rDNS has been updated.
If you want this IP address delisted immediately, then please submit a delist request.

I checked my A-Record in DNS and my SPF, they are ok.

But I think, that I have to contact my Provider and tell them that they have to set the PTR-Record to MYSERVERIP to get the correct rDNS.


I want also to set the correct Helo hostname.
I have done this:

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config setprop smtpd HeloHost mail.mydomain.at
signal-event email-update

But when I look in the helohost at /var/qmail/control
it shows my Domain (myserver.at), but not the subdomain mail.myserver.at


Am I somehow on the right path?

Best regards
Martin
 

[bunkobugsy]

Try to verify that your domain is set up right at intodns.com and "check mail server reputation" for example at mxtoolbox.com/emailhealth - check that you're not on any blacklist. Then try to delist at app.abusix.com/lookup

[Jean-Philippe Pialasse]

rDNS is not set at your DNS provider but at your internet service provider. 

the ip should reverse to the same hostname.domain as your email server present itself.


if your isp does not allow that, find anothet one or pay for a smarthost.