OT: Do RBLs take precedence over access entries

Steve Freegard steve.freegard at fsl.com
Fri Mar 15 20:58:44 GMT 2013

On 15/03/13 18:07, Steve Campbell wrote:
> Does anyone know which takes precedence in sendmail: RBLs defined in
> sendmail.mc or the access file?
> I'm having a time with one customer who's domain uses a mail service or
> ISP that sends quite a bit of spam. I've blocked quite a bit of IPs in
> access, and some are more than likely ones the senders outgoing server
> is apart of, but see that a few of their IPs are listed in spamhaus
> also, which I use in sendmail (not MS). I've added an entry at the top
> of the access file to "OK" the sender, but the email still gets blocked.
> I've informed the sender that she should be receiving some form of
> notice that we have rejected their email, but they insist that they do
> not get the notice, so I'm having a little trouble figuring out which IP
> they're using this week.

Did you whitelist by the senders address or the source IP as it makes a 

The access-map will take precedence but only if you have 'delay_checks' 
enabled e.g.


Otherwise the blacklisted address is rejected at connection time, so 
Sendmail doesn't get to see the sender to apply any further access map 


More information about the MailScanner mailing list