use mailrc instead of cluttering the script; reformat summary

mail2mms.sh

@@ -12,9 +12,7 @@
 # addr=<the address the notification will appear to be sent from>
 # phone=<your phone number in email address form (eg, 9876543210@mms.att.net)>
 # inbox=<the location of the maildir folder corresponding to the inbox>
-# smtp_server=<the address and port (address:port) of your smtp server>
-# smtp_user=<the username you use on your smtp server>
-# smtp_password<the password to login to the smtp server>
+# all other configuration can be done in your .mailrc
 
 . ./.config
 
@@ -23,22 +21,38 @@ oldnew=0
 summary() {
   i=0
   for m in $(\ls -1r ${inbox}/new/*); do
+
+    # if there are more than 3 new messages,
+    # just hint that there is more
     i=$((i + 1))
     if [ ${i} -gt 3 ]; then
       echo "and more..."
       break
     fi
+
+    # grab the From and Subject headers
     subject=$(grep ^Subject: ${m} | head -n 1)
     from=$(grep ^From: ${m} | head -n 1)
-    echo ${from}
-    echo ${subject}
-    echo
+
+    # extract just the email address from the From header
+    # ie, discard all tokens but the last
+    # and remove angle brackets if present
+    set -- $from
+    while [ ${#} -gt 1 ]; do
+      shift
+    done
+    echo -n $(echo ${@} | sed -e s/[\<\>]//g)
+
+    # now append the message after discarding the Subject: key
+    set -- $subject
+    shift
+    echo ": \"${@}\""
   done
 }
 
 while true; do
 
-  # sync mailbox if this is not the mailserver
+  # Sync the inbox if we are not the mailserver
   if [ "$1" != "-l" ]; then
     mbsync -a
   fi
@@ -48,28 +62,12 @@ while true; do
 
   # If the number of new mails has increased  
   if [ ${newnew} -gt ${oldnew} ]; then
-
-    # If we are on the mailserver, just mail the alert out from here
-    if [ "$1" = "-l" ]; then
-      echo "$(summary)" \
-      | mail -r ${addr} \
-        -s "new mail [${newnew}]" \
-        ${phone}
-
-    # Otherwise, use the smtp configuration from the config file to send it
-    else
-      echo "$(summary)" \
-      | mail -r ${addr} \
-        -s "new mail [${newnew}]" \
-        -S smtp=${smtp_server} \
-        -S smtp-use-starttls \
-        -S smtp-auth=login \
-        -S smtp-auth-user=${smtp_user} \
-        -S smtp-auth-password=${smtp_password} \
-        ${phone}
-    fi
+    echo "$(summary)" \
+    | mail -r ${addr} \
+      -s "new mail [${newnew}]" \
+      ${phone}
   fi
 
   oldnew=${newnew}
-  sleep 2m
+  sleep 10m
 done