Last night I was playing on the wastelands server. I wanted to send a message to an offline player so I typed /help mail to learn how to use the /mail command, and was immediately kicked for 'spamming.' Later, I tried to send a message using /mail send and was again kicked for 'spamming.' I was not using erroneous repeating characters and I only used each command once, so I do not know why I was kicked. Is this a bug with the /mail command, or did I do something incorrectly?
Update: The problem seems to only occur on the wastelands server.