function
| Library: Email support, SMTP and POP3 (OMMAIL) Include: ommail.xin | Returns: The length of the message. | 
define external integer function MailInBoxGetMessageSize
           value MailInBox this-MailInBox
  message value integer message
Argument definitions
This function returns the length of the message indicated by number. A negative number will be returned if an error occurs.
do when MailInBoxGetMessageSize MyBox message 1 < 1000000 ... done