Solved blocked using query.bondedsender.org

J

jasonhirsh

This is affecting your incoming emails?
Do you have that bondedsender.org black list set up in your postfix configuration? It would look something like the following -

Code: 
reject_rbl_client query.bondedsender.org

66.163.184.151 is trying to deliver an email. The server is it trying to send the message to is checking the query.bondedsender.org black list and getting an error. However, rather than realising it is an error and letting the email go through, this mail server is assuming the response is an "ip blocked" response and rejecting the email. Because this server has done too many queries against the bondedsender black list, it's going to get the same response for every email.

For extra detail, when you look up against a black list such as query.bondedsender.org, the ip will be converted to a hostname in the form 151.184.163.66.query.bondedsender.org. If this returns non-existent, the IP isn't blocked. If it returns an IP address, then that sender IP is listed in their database and is blacklisted. However, this particular blacklist returns 127.255.255.255 if you are a free user and send too many queries. If you aren't specifically checking the address being returned and just assume any positive response means the sender is blacklisted, this will cause the mail server doing the check to block the email even if the sender isn't actually in their blacklist.
 
usdmatt said:
This is affecting your incoming emails?
Do you have that bondedsender.org black list set up in your postfix configuration? It would look something like the following -

Code: 
reject_rbl_client query.bondedsender.org

66.163.184.151 is trying to deliver an email. The server is it trying to send the message to is checking the query.bondedsender.org black list and getting an error. However, rather than realising it is an error and letting the email go through, this mail server is assuming the response is an "ip blocked" response and rejecting the email. Because this server has done too many queries against the bondedsender black list, it's going to get the same response for every email.

For extra detail, when you look up against a black list such as query.bondedsender.org, the ip will be converted to a hostname in the form 151.184.163.66.query.bondedsender.org. If this returns non-existent, the IP isn't blocked. If it returns an IP address, then that sender IP is listed in their database and is blacklisted. However, this particular blacklist returns 127.255.255.255 if you are a free user and send too many queries. If you aren't specifically checking the address being returned and just assume any positive response means the sender is blacklisted, this will cause the mail server doing the check to block the email even if the sender isn't actually in their blacklist.
Click to expand...
I have no idea when and how I added this RBL. Sleep typing again I guess. This exposed another problem I was unaware cause when I updated to FreeBSD 14.1. and

Postfix 3.9


a number of my databases are in disallowed formats
https://bbs.archlinux.org/viewtopic.php?id=294782

This will keep me busy for the day

TH
 
You must log in or register to reply here.
Back
Top