Using The Cbl

[ashesnglass]

Hi,

 

A family member is trying to use a SMTP associated with my TCH account and is getting messages about her IP being blacklisted by spamhaus.org. I checked with spamhaus.org and traced it to a CBL block. I found this on the CBL site (cbl.abuseat.org):

 

We're getting a lot of reports of spurious blocking caused by sites using the CBL to block authenticated access to smarthosts / outgoing mail servers. THE CBL is only designed to be used on INCOMING mail, i.e. on the hosts that your MX records point to.

 

If you use the same hosts for incoming mail and smarthosting, then you should always ensure that you exempt authenticated clients from CBL checks, just as you would for dynamic/dialup blocklists.

 

Another way of putting this is: "Do not use the CBL to block your own users".

 

Is it possible that this is causing the block?

 

Thanks!

[TCH-Dick]

I have already sent the request to have that servers IP removed from the blacklist. It should be emoved from the CBL list in a matter of hours, then it all depends on the ISP that uses that blacklist to update.

 

The issue with smarthosts should not be affecting TCH.

[ashesnglass]

I have already sent the request to have that servers IP removed from the blacklist. It should be emoved from the CBL list in a matter of hours, then it all depends on the ISP that uses that blacklist to update.

 

The issue with smarthosts should not be affecting TCH.

<{POST_SNAPBACK}>

 

Great, thank you!!