Exchange Server updates released

Microsoft has released updates for Exchange 2016, 2013 and 2010.

Here are links to download:-

Exchange 2016 CU10:-


Exchange 2013 CU21:-


Exchange 2010 SP3 RU22:-

Microsoft Exchange Quarantine mailbox (Poison mailbox)

Exchange 2010 and Exchange 2013:-

Quarantined mailbox or poison mailbox:-

A poison mailbox is mailbox which is having below characteristics. A Poison mailbox could cause the Exchange store to repeatedly fail.

There are several types of events for which the