-SUBJ or -SUBJECT parameter allows to specify email Subject field.
febootimail -SUBJECT Email regarding automation software
febootimail -SUBJ -USEFILE subject.txt
Email subject is a kind of brief message summary. It allows the recipient to get at least rough idea about possible email message contents. It is useful to keep text in subject reasonably short and informative. The subject is optional.
C:\>febootimail -SERVER smtp.server.com -FROM email@example.com -TO firstname.lastname@example.org -SUBJECT Send email with a subject -TEXT -USEFILE email-body.txt
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