sendmail(1) General Commands Manual sendmail(1) (NAME) sendmail - sendmail nullmailer (SYNOPSIS) sendmail [ flags ] [ recipients ] < message (DESCRIPTION) (front-end) nullmailer-inject nullmailer-smtpd . sendmail . -bs nullmailer-inject nullmailer-smtpd . nullmailer-inject . (OPTIONS) -B TYPE -C FILE -d DEBUG -h COUNT -i -L TAG -N DSN -n -O OPTION -o OPTION -p PROTOCOL -q TIME -R RETURN -U -V ENVID -v -X LOGFILE . -bm (). -bp . mailq . -bs SMTP . nullmailer-smtpd . -F ADDRESS . -f ADDRESS (envelope sender). -r ADDRESS -f. -t . (SEE ALSO) mailq(1), nullmailer-inject(1), nullmailer-smtpd(1) sendmail(1)