The Spasm Blacklist

Blacklists may be on a per-user (user@domain.com) basis, or a per-domain (domain.com) basis. A user's personal blacklist is first checked, followed by the associated domain blacklist. If a message is caught by one of the blacklists, the message is rejected, tagged, or quarantined based on the user's settings. A blacklist entry can be one of four things:

  • Email Address: This is the sender's envelope address, in the form "user@domain.com".
  • Hostname: This is a hostname or domain name of the sending server. For example, "my.host.domain.com", or "domain.com", or even just "com". This will check all subdomains of a given hostname for a match in the blacklist. Unlike whitelists, a hostname entry in a blacklist will also match against the domain of the sender's email address.
  • IP Address: This is an IP address of the sending server. For example, "10.1.2.3". It may also be a classful netblock in the form "10.1.2", "10.1", or even just "10"; or it may be a CIDR address in the form "10.1.2.0/25". CIDR addresses must be in "Dotted Quad" notation; that is, they must be "10.1.2.0/25", not "10.1.2/25".
  • A Regular Expression: This is a Perl Regular Expression nested between two forward slashes.

Annotating Blacklist Entries

A comment that serves as a reminder of who or what is being shunned may be optionally appended to any blacklist entry. Comments are delimited with "//", like so:

blacklist_entry // comment

Some Examples


66.35.244.0/24 // spammers for hire
202.60.224.0/20 // Hong Kong Spammers
202.60.240.0/21 // cyber express communication (hk)
202.60.248.0/22 // cyber express communication (hk)
iamaspammer@spamhost.net // With an address like that, why would you accept their mail?
btcentralplus.com
sheck-buy.com
/.*dsl.*\.[a-z0-9-]+\.[a-z]+/  // accept nothing from DSL hosts without good DNS

What are People Saying about SpiritOne?

"In all the years I've used SpiritOne, I have NEVER been given grief for the occasional stupid things I've done. Now and then I go into shock at the fact that I actually have to think about having an ISP. When I've been 'excitable' during a service interruption, the staff, especially the tech staff, are the epitome of unruffled calm and don't escalate the dialogue."