Sendcastle - Email marketing services - Optimizing marketing and newsletters differently

Sendcastle helps you design and send your e-mail newsletters or mass marketing campaigns in seconds. Optimizing your newsletter get easy with our new segmenting, filtering and merging software. Also double opt-in scripts and newsletter templates for a higher email conversion.

Keywords: mass mail, e-mail list, html email, E-Mail Marketing, bulk mail, html e-mail, Email Marketing Resources, email postcards, email listserv, opt-in tool