Bash Script with Multiple if statments

So I am trying to get email notifications setup on about 100 servers and I am using an if script that works perfectly, however I have a tool that ssh's into each machine ever 5 min to gather statistics. I am trying to adapt the script to ignore any ssh attempts from 1 IP. I have racked my brain and I think I have looked through every possible question on the subject. Any help would be amazing thank guys!!!

Currently the script sends an email no matter who ssh's in.

!/bin/sh
# Change these two lines:
sender="fromtest@test.com"
recepient="test@test.com"

if [ "$PAM_RUSER" != "192.168.1.10" ]; then
goto done
next
 if [ "$PAM_TYPE" != "close_session" ]; then
  host="`hostname`"
  subject="SSH Login: $PAM_USER from $PAM_RHOST on $host"
  # Message to send, e.g. the current environment variables.
  message="`env`"
  echo "$message" | mail "$sender" -s "$subject" "$recepient"
 fi
fi