Forum Discussion

Silver Contributor

Jul 12, 2023

Solved

Impact of TCP KeepAliveTime on increasing mail.que file - Exchange Server 2016

Hello, our mail.que file on Exchange 2016 Server is increasing a lot for the last 2 months (normally it wasn't growing so fast). We don't have a significant general increase in the number of mail...

2016

Exchange Server

mderooij
Jul 13, 2023
MaxDumpsterTime is not used, unless you are still running Ex2010 somewhere.
You configured SafetyNetHoldTime or coming from Ex2010? Default is 2 days.
Should stabilize at some point (unless sizing is way off with reality)
Sure you are not sending a big spike in mail, mail loops are happening, etc.? Back pressure not holding off processing incoming messages making .que grow?
This article might help, measures and metrics to keep an eye on, etc.: https://techcommunity.microsoft.com/t5/exchange-team-blog/transport-database-understand-size-and-troubleshoot/ba-p/1113388

mderooij

MVP

Jul 13, 2023

MaxDumpsterTime is not used, unless you are still running Ex2010 somewhere.
You configured SafetyNetHoldTime or coming from Ex2010? Default is 2 days.
Should stabilize at some point (unless sizing is way off with reality)
Sure you are not sending a big spike in mail, mail loops are happening, etc.? Back pressure not holding off processing incoming messages making .que grow?
This article might help, measures and metrics to keep an eye on, etc.: https://techcommunity.microsoft.com/t5/exchange-team-blog/transport-database-understand-size-and-troubleshoot/ba-p/1113388