[sr-dev] OT: Excessive or fatal bounces for yahoo, hotmail, ...

Hello, this morning were reported over 100 "excessive or fatal bounces" for delivery from mailing list to yahoo, hotmail/live (and few other that might be hosted) email addresses. This is unusual high and I spotted several addresses that were active recently and unlikely to have their email address gone. Is anyone here aware of similar issues and potential fixes? I guess yahoo/hotmail servers simply reject the emails sent by mailman of mailing lists. Any hint would be appreciated... Cheers, Daniel -- Daniel-Constantin Mierla - http://www.asipto.com http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda