Month: June 2012

Categories
Announcements Changes

New Default DNSBL: cidr.dnsbl.rollernet.net and ROLLERNET_CIDR

We’ve created a new internal DNSBL “cidr.dnsbl.rollernet.net” that contains networks that have spammed us directly, contain abusive mail hosts, or providers that are sources of such.

This is not a new feature, other than making it available as a DNSBL. For many years this list of blocked networks has been maintained internally and we handled whitelisting requests on a per-customer basis. By moving it to a DNSBL you will now see entries in the mail logs, can opt to omit it from the DNSBL config, and add whitelist entries online. Additionally, anyone not using the DNSBL feature but is using SpamAssassin will now have access to it through the “ROLLERNET_CIDR” test.

The disadvantage of moving to a DNSBL is that anyone with the DNSBL feature disabled (or aren’t using the default list) may start seeing spam from these networks that were previously directly blocked by the internal list. We recommend enabling DNSBL and configuring “cidr.dnsbl.rollernet.net” to return to the previous behavior.

Networks are added through direct observation (or brought to our attention) and correspond to “whois” or RIR boundaries. Once added to the list entries are generally never removed unless the network owner requests removal and we can verify in our logs that the listed network is now clean.

UPDATE: On January 11, 2019 the zone name was changed to cidr.dnsbl.rollernet.net. This zone is not accessible outside of our network.

Categories
Changes

New SpamAssassin Test: ROLLERNET_URI

We’ve added a new SpamAssassin test to the system: ROLLERNET_URI

This is an internal URI DNSBL that we add spamvertized domains to when someone spams us directly, typically to our role accounts. This rule has a default score of 3 points if a match is found in the message body.

With this we have removed two redundant tests: ROLLERNET_DATEME and ROLLERNET_LEADRUSH. The domains from those rules have been added to our internal URI DNSBL and will match on ROLLERNET_URI.

Categories
Announcements

Mail Mirrors by Date with Folders

We’re going to be adding a Sieve script option for Mail Mirror to file messages in IMAP folders by date, one per day, in the format YYY-MM-DD. Some customers with mirrors that are extremely large (over 30GB inbox size) will have this modification performed retroactively since inboxes that large may have IMAP login trouble due to the index file growing too large and hitting mmap limits. For everyone else this will be a handy way to organize a mirror, especially a full domain mirror which may have thousands of messages per day.

Don’t want to wait for us? Simply add this Sieve script to your existing mirror storage mail box:

require ["date", "variables", "fileinto"];
if currentdate :matches "date" "*" { set "date"  "${1}"; }
fileinto "${date}";

All we will be doing is adding the Sieve script above at mirror storage creation time (or not, if you opt out).

Categories
Uncategorized

.ORG Price Increase on July 1, 2012

Effective July 1, 2012 at 0:00 UTC, Public Interest Registry (PIR), the operator of the .org domain extension will increase the registry cost for .org registrations by $0.49.

As such, we will be increasing our registration price for .org domains from $11.50 to $11.99.