I haven’t heard of Feedblitz – just looking at their website now. Appears that they’re a Feedburner replacement specialising in RSS-to-email (sending your blog subscribers an email about latest posts). Their pricing looks a bit steep (considering Feedburner was free) – so I’d probably choose Mailchimp or Aweber over them? That way you can message up to a few thousand people free of charge.
GetResponse is an email marketing tool that helps businesses both maintain their contacts as well as coordinate professional marketing campaigns. It offers a very easy-to-manage database, users can create individual campaigns and manage multiple emailing lists within the software. GetResponse can also be used to build landing pages and surveys and publish newsletters on social media accounts such as Twitter and Facebook.
Send the email. Once you've uploaded the contacts that you want to send the email to, it's time to send the email to the list. Go over the recipients one more time before sending the email and then send it out. Another option that you have is to schedule the blast to go out at a later date and time. This is a great idea if you may have to make last-minute revisions or want to choose a specific time to send it out.