Category Archives: Exchange

Microsoft Exchange: Increase Maximum Message Size to 100 MB

Somethimes, the default maximum message size (including attachments) is not enough (30 MB is the standard). To increase this to 100 MB, do the following: First check the current maximum size on all relevant Exchange components: Get-TransportConfig | ft MaxSendSize, MaxReceiveSize Get-ReceiveConnector | ft Name, MaxmessageSize Get-SendConnector | ft Name, MaxMessageSize Get-Mailbox Administrator |ft Name, MaxsendSize, MaxReceiveSize Then set it to 100 MB for all components: Set-TransportConfig Read more [...]

Exchange 2016: "There is a pending reboot from a previous installation of a Windows Server role or feature"

When I wanted to install CU11 for Exchange 2016, at the Prerequisites Check, I got the following error message: "There is a pending reboot from a previous installation of a Windows Server role or feature." I restarted the server twice, but still got the same message. After messing around with some registry keys and still no luck, I looked at the error message in more detail. The key part is "installation of a Windows Server role or feature". So this was not talking about a normal pending reboot Read more [...]