Überprüfen der E-Mail Anhanggrösse:

get-transportconfig | ft maxsendsize, maxreceivesize
get-receiveconnector | ft name, maxmessagesize
get-sendconnector | ft name, maxmessagesize

Setzen der E-Mail Grösse:

get-transportconfig | Set-TransportConfig -maxsendsize 35MB -maxreceivesize 35MB
get-receiveconnector | set-receiveconnector -maxmessagesize 35MB
get-sendconnector | set-sendconnector -maxmessagesize 35MB

Per Benutzer:

get-mailbox USER | ft Name, Maxsendsize, maxreceivesize
get-mailbox USER | Set-Mailbox -Maxsendsize 35MB -maxreceivesize 35MB