Re: [External] SA 4.0.1 - util_rb_3tld

On 09.01.25 16:06, Max Erenburg via users wrote:
>Yeah not trying to welcome them entirely, more so like other well-known domains that are commonly seen and will not be blacklisted (e.g. docs.google.com ).
>
>I will try out:
>uridnsbl_skip_domain ct.sendgrid.net

Tell me please if it works, I'm afraid it won't exactly because of the 
util_rb_3tld    ct.sendgrid.net

which seems to cause not finding ct.sendgrid.net in lists of domains to 
skip:
https://marc.info/?l=spamassassin-users&m=172320987309970&w=2

if it doesn't work, I guess you could use something like:

dns_query_restriction deny ct.sendgrid.net.multi.uribl.com ct.sendgrid.net.multi.surbl.org ct.sendgrid.net.spamhaus.org ct.sendgrid.net.lookup.dkimwl.org


>From: Kevin A. McGrail <[email protected]>
>Sent: Thursday, January 9, 2025 9:10 AM
>To: [email protected]
>Subject: Re: [External] SA 4.0.1 - util_rb_3tld
>
>Looking to check if my understanding is correct or there is some sort of bug.
>I have the following entry in my local.cf file:
>util_rb_3tld    ct.sendgrid.net
>
> I would expect that ‘ *.ct.sendgrid.net ‘ would be excluded from any URI BL 
> lookups?
>
> Hi Max, sorry, no.  That command makes it so that RBL lookups treat that as 
> a 3rd level domain.  For example, say I have the domain 
> somerandomexample.co.uk in my email.  Without a setting that ".co.uk" is a 
> 2TLD, then the look for the rbl is wrong.  So say you had 
> xyz.ct.sendgrid.net and you want to list it on an RBL but not list 
> pdq.ct.sendgrid.net, you would set ct.sendgrid.net as a 3TLD and then you 
> can list the xyz or pdk individually.
>
> To skip RBL lookups, you will likely want a welcomelist entry to/from if 
> you receive or send emails with the domain in question [1] and to look at 
> the config/user pref uridnsbl_skip_domain.

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