[Mailman-Users] Unexplained unsubscribes of yahoo.comemail addresses

Mark Sapiro mark at msapiro.net
Mon Mar 1 17:24:10 CET 2010

Brian Carpenter wrote:
>You can check your mail log to see if you are seeing a high number of Yahoo!
>deferrals. If so then those deferrals may be behind those unsubscribes,

Yahoo deferrals should not cause this. The message should be simply
queued and retried in the MTA with no notification to Mailman. Even a
"delayed" message to Mailman (e.g., your message hasn't been delivered
for 4 hours - will keep trying) should not result in a bounce, and in
my experience, Yahoo always ultimately accepts the message before the
MTA gives up and returns failure to Mailman.

Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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