AOL spam filters go awry

Tuesday, 10 June 2003, 3:58 PM EST

Affected Comcast subscribers discovered the blocks as early as last Thursday, and they continued to report difficulties through early Monday afternoon. By late that afternoon, America Online had fixed the problem, but was unable to provide information as to its nature, said AOL spokesman Andrew Weinstein.

He added that technicians have been trying to isolate the issue and believe it could have been a case of mistakenly identifying legitimate Comcast e-mail as spam.

Comcast spokeswoman Sarah Eder said the company did not make any changes to its server or software configuration. She would not say how many Comcast subscribers were affected.

AOL commonly uses server-blocking tactics to thwart spammers. Large Internet service providers such as Comcast must register their e-mail server configurations to communicate with AOL. Often, AOL blocks servers originating from large ISPs if they fail to inform AOL of changes or additions to their e-mail servers.

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