For over a year now, email deliverability experts have been talking about the 'fact' that ISPs use engagement metrics (typically not defined by these so-called experts) to determine inbox placement.

Hah, I set my friend up with a GMail account, including POP access, but his Hotmail account is already in the hands of some of his clients. Guess he'll have to use browser access to keep that account ...

Microsoft has acknowledged that a small number of users experienced issues with Hotmail over the last few days and says the problem regarding missing e-mails has been fixed. I don't believe I lost any ...