Blocking mail from random addresses

Hi there


I want to do the opposit of a callout random test.
So if the remote hosts accepts random address during a callout, I want to
reject all mail from that domain.
How does one do this?


Regards,
Rob
--
+----------------------------------------------------------------------+
| Rob van der Putten, rob@sput.nl |
| http://www.sput.nl/spam/spam-policy.html |
+----------------------------------------------------------------------+

Hi there


Rob van der Putten wrote:

> I want to do the opposit of a callout random test.
> So if the remote hosts accepts random address during a callout, I want to
> reject all mail from that domain.
> How does one do this?

I did some experimenting;

The stuff below tests for abuse;

# Test for abuse
deny !verify = sender=abuse@$sender_address_domain/callout
message = Abuse account required. See http://www.sput.nl/spam/

This doesn't work for random address;

verify = sender=random/callout

This doens't work either;

verify
sender=$primary_host_name-$tod_epoch-testing@$sender_address_domain/callout

This does;

# Don't accept mail from random addresses
deny verify =
sender=sput.nl-$tod_epoch-testing@$sender_address_domain/callout
message = Your SMTPD accepts mail for random addresses. See
http://www.sput.nl/spam/

I probably need some whitelisting though


Regards,
Rob
--
+----------------------------------------------------------------------+
| Rob van der Putten, rob@sput.nl |
| http://www.sput.nl/spam/spam-policy.html |
+----------------------------------------------------------------------+

Hi there


Rob van der Putten wrote:

> I did some experimenting;
>
> The stuff below tests for abuse;
>
> # Test for abuse
> deny !verify = sender=abuse@$sender_address_domain/callout
> message = Abuse account required. See http://www.sput.nl/spam/
>
> This doesn't work for random address;
>
> verify = sender=random/callout
>
> This doens't work either;
>
> verify
> sender=$primary_host_name-$tod_epoch-testing@$sender_address_domain/callout
>
> This does;
>
> # Don't accept mail from random addresses
> deny verify =
> sender=sput.nl-$tod_epoch-testing@$sender_address_domain/callout
> message = Your SMTPD accepts mail for random addresses. See
> http://www.sput.nl/spam/
>
> I probably need some whitelisting though

I changed things a bit;

# Test for abuse
deny hosts = ! : !+relay_from_hosts
senders = ! :
!verify = sender=abuse@${sender_address_domain}/callout
message = Abuse account required. See http://www.sput.nl/spam/

# Don't accept mail from random addresses
deny hosts = ! : !+relay_from_hosts
senders = ! :
verify =
sender=sput.nl-${tod_epoch}-testing@${sender_address_domain}/callout
message = Your SMTPD accepts mail for random addresses. See
http://www.sput.nl/spam/

This is still experimental.


Regards,
Rob