Edit: /opt/dedrads/telcheck (2411B)
#!/usr/bin/env bash
# telcheck: Check for mail blocks with telnet
# Nathan P.
# 0.1a
set -euo pipefail
TEXT_BOLD="$(tput bold)"
TEXT_UNSET="$(tput sgr0)"
VERSION='0.1a'
RELEASE='Toffee'
MAIL_HOSTS=("mx-aol.mail.gm0.yahoodns.net:AOL & Yahoo!"
"al-ip4-mx-vip1.prodigy.net:AT&T"
"mx1.mxge.comcast.net:Comcast"
"gmail-smtp-in.l.google.com:Gmail (Unreliable)"
"outlook-com.olc.protection.outlook.com:Outlook & Hotmail")
show_help() {
cat<";
sleep 3s;
echo -e "QUIT";
} | timeout 30s telnet -b "${SOURCE_IP}" "${@}" 25 || true
}
while [[ "${#}" -gt 0 ]]; do
case "${1}" in
-b|--source)
SOURCE_IP="${2}"
break
;;
-v|--version)
echo "${VERSION} \"${RELEASE}\""
exit 0
;;
-h|--help)
show_help
exit 0
;;
-B|--battle)
exit 0
;;
-*)
echo -e "Not sure what ${1} is supposed to mean" >&2
echo
show_help
exit 1
;;
*)
break
;;
esac
done
main