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Russell Hunt <[log in to unmask]>
Tue, 2 May 2017 19:50:01 +0000
text/plain (835 bytes) , text/html (3860 bytes)
I have a subscriber who has received notice that she's been unsubscribed because of three bounced messages. The reason given was this:


"- The last reported error was: 5.0.0 554 Service unavailable; Client host [listserv.unb.ca] blocked by dnsbl.cobion.com; 131.202.1.39 "

I know dnsbl is a spam blocking database, but I can't imagine why she was singled out - five other subscribers at the same address haven't been.

Any suggestions? I've resubscribed her, in the hope that it's just a transitory bug, but I'm doubtful.

-- Russ

Russ Hunt
Professor Emeritus of English
St. Thomas University
http://www.stu.ca/~hunt


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