DT Mass Mailer is a mass E-mail tool for those having trouble with the default mass mailer in dolphin. No more emails stuck in the pending status or failing after sending out 5 emails.
If you have been getting notices from your shared hosting provider about sending spam email or they are turning your hosting account off for sending out to many emails to fast this may help you to stop that from happening again.
This is also a great tool for those that are on VPS and dedicated machines and it works with Linux and windows servers as well.
I have been testing DT Mass Mailer for just about a year now with a site with just over 18,000 members and it runs strong for 2 hours straight to send out all 18,000 plus emails while the load on the server was just .08.
Support Forum: DT Mass Mailer Support Forum
Some Key Features
· Simple 2 minute web based installation -- no "CRON"
· Quickly Import and Export your subscriber base
· WYSIWYG HTML Mailing Creation
· Compatible with all common web hosts
· Localized in over 10 languages
· Limit the sending of mails -- throttle by hour, bytes, and domain limits.
· AJAX based subscriber Management
· View and Reload sent mailings from the Mailing History page
· Get a list of sent, unsent, and failed recipients during a mailing
· Mailings can be paused, resumed, and canceled "live"
· Very low disk I/O -- no wasteful back and forth database queries
· Send mailings through up to 4 SMTP relays simultaneously
· Use of smtp, php mail, or send mail.