Get Removed from Blacklist
Happy Friday All,
I noticed when I run a Blacklist check on my public IP address, that I appear on 1 blacklist
Here are the details:
I would like to correct this. I went to my ISP and they said they need the IP address and hostname to create a reverse DNS entry. I obviously have the IP address, but I'm not sure what goes in the Hostname field. What should be in that field?
Thank you in advance!
I noticed when I run a Blacklist check on my public IP address, that I appear on 1 blacklist
Here are the details:
I would like to correct this. I went to my ISP and they said they need the IP address and hostname to create a reverse DNS entry. I obviously have the IP address, but I'm not sure what goes in the Hostname field. What should be in that field?
Thank you in advance!
SOLUTION
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SOLUTION
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ASKER
Thanks All!
Jose:
When you say "it should resolve to your host"...Are you referring to my email hostname?
We are running our own Exchange server, but all mailflow is sent/received from our 3rd party email archiving/spam filter company. So our current SPF and MX records go to them.
My point is, we don't really have an email hostname that goes directly to our IP address. Our MX records point to the 3rd party company.
Jose:
When you say "it should resolve to your host"...Are you referring to my email hostname?
We are running our own Exchange server, but all mailflow is sent/received from our 3rd party email archiving/spam filter company. So our current SPF and MX records go to them.
My point is, we don't really have an email hostname that goes directly to our IP address. Our MX records point to the 3rd party company.
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If your email is being sent through an external spam filtering service then the fact that your external IP address is blacklisted is irrelevant, as long as your public DNS zone has the correct MX and SPF record(s) for your spam filtering service. I wouldn't advise setting up alternate MX and SPF records on your public DNS zone for your own server's public IP, because that would leave you open to receiving a lot of spam and potentially virus loads, if the service is down.
ASKER
Hypercat,
That's exactly what I was thinking. When I send an email out and look at the header, it comes from the 3rd party service and IP. When I look my domain MX records, it points to them. As long as the third party email service does not get blacklisted, then I shouldn't have issues with mailflow.
But on the flip side to all of this, I still am not fond of appearing on a blacklist. Can I correct this by adding a reverse DNS record? I know I don't NEED to, but when other colleagues see this and there is any sort of issue, they immediately say "it's because we are on a blacklist". I want to fix this so they can stop using this as the scapegoat.
That's exactly what I was thinking. When I send an email out and look at the header, it comes from the 3rd party service and IP. When I look my domain MX records, it points to them. As long as the third party email service does not get blacklisted, then I shouldn't have issues with mailflow.
But on the flip side to all of this, I still am not fond of appearing on a blacklist. Can I correct this by adding a reverse DNS record? I know I don't NEED to, but when other colleagues see this and there is any sort of issue, they immediately say "it's because we are on a blacklist". I want to fix this so they can stop using this as the scapegoat.
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ASKER
Excellent advice, Hypercat. I will reach out to them and report back my findings.
The issue seems to be solved, no more replies from th author
http://www.spamrats.com/rats-noptr.php
Add your IP to request the removal.
And follow the Amit suggestion
PTR is a thing of your public IP and it should resolve to your host
Direct "Mail.blablabla.com" => IP
PTR IP => Mail.blablabla.com
And about the SPF:
go here and fill up the fields with your information
https://www.spfwizard.net