I just found a problem that I am having with my mail server. I went to forward an old message I received to an internal user, and go this error. This message had an attachment of type .xls (excel), not sure if that matters of not.
This is the first time I've seen it, and everything else seems to be sending and coming in OK.
I don't know what this means....
A network service error has occurred. msg: system failure: java.lang.NumberFormatException: For input string: "TEXT"