php console mailer to run on your server for mass mailing (using php mail function not SMTP)
edit your config.json file :
{
"mailListeFile":"mylist.txt",
"LetterFile":"letter.html",
"senderFromEmail":"no-reply@mywebsite.com",
"senderFromName":"Support Team",
"Subject":"Account Notification",
"sleepTime":"1",
"SleepAfter":"200",
"testEmail":"youremail@server.com",
"testAfter":"500"
}