On Sat, 15 Sep 2012, Lutz Petersen wrote:
It's not a special problem with messagelabs. It's in general a problem with all of these mass marketing mailers. In my opinion all of these companies/networks never should be placed in any whitelist.
Point of order: The "trusted hosts" list is _NOT_ a whitelist. It is merely a list of hosts who you trust not to forge headers, so that you can push DNS tests back a layer from a site that you know forwards mail to you.
If you subscribe to mail filtering services from a company like Messagelabs (or Symantec Cloud Antispam), it is utterly sensible to add them to your trusted hosts list so that you perform DNSBL checks against the MTAs they accept your mail from.
I won't address your point about whitelisting or blacklisting such entities, I merely wanted to clarify a possible misunderstanding that seems to have crept into this thread.
-- John Hardin KA7OHZ http://www.impsec.org/~jhardin/ jhar...@impsec.org FALaholic #11174 pgpk -a jhar...@impsec.org key: 0xB8732E79 -- 2D8C 34F4 6411 F507 136C AF76 D822 E6E6 B873 2E79 ----------------------------------------------------------------------- If "healthcare is a Right" means that the government is obligated to provide the people with hospitals, physicians, treatments and medications at low or no cost, then the right to free speech means the government is obligated to provide the people with printing presses and public address systems, the right to freedom of religion means the government is obligated to build churches for the people, and the right to keep and bear arms means the government is obligated to provide the people with guns, all at low or no cost. ----------------------------------------------------------------------- 2 days until the 225th anniversary of the signing of the U.S. Constitution
