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copied!<p>People have recommended MailChimp which is a good vendor for bulk email. If you're looking for a good vendor for transactional email, I might be able to help.</p> <p>Over the past 6 months, we used four different SMTP vendors with the goal of figuring out which was the best one.</p> <p>Here's a summary of what we found...</p> <p><a href="http://www.authsmtp.com/" rel="nofollow">AuthSMTP</a></p> <ul> <li>Cheapest around</li> <li>No analysis/reporting</li> <li>No tracking for opens/clicks</li> <li>Had slight hesitation on some sends </li> </ul> <p><a href="http://postmarkapp.com/" rel="nofollow">Postmark</a></p> <ul> <li>Very cheap, but not as cheap as AuthSMTP</li> <li>Beautiful cpanel but no tracking on opens/clicks</li> <li>Send-level activity tracking so you can open a single email that was sent and look at how it looked and the delivery data.</li> <li>Have to use API. Sending by SMTP was recently introduced but it's buggy. For instance, we noticed that quotes (") in the subject line are stripped.</li> <li>Cannot send any attachment you want. Must be on approved list of file types and under a certain size. (10 MB I think)</li> <li>Requires a set list of from names/addresses.</li> </ul> <p><a href="http://www.jangosmtp.com/" rel="nofollow">JangoSMTP</a></p> <ul> <li>Expensive in relation to the others – more than 10 times in some cases</li> <li>Ugly cpanel but great tracking on opens/clicks with email-level detail</li> <li>Had hesitation, at times, when sending. On two occasions, sends took an hour to be delivered</li> <li>Requires a set list of from name/addresses.</li> </ul> <p><a href="http://sendgrid.com/" rel="nofollow">SendGrid</a></p> <ul> <li>Not quite a cheap as AuthSMTP but still very cheap. Many customers can exist on 200 free sends per day.</li> <li>Decent cpanel but no in-depth detail on open/click tracking</li> <li>Lots of API options. Options (open/click tracking, etc) can be custom defined on an email-by-email basis. Inbound (reply) email can be posted to our HTTP end point.</li> <li>Absolutely zero hesitation on sends. Every email sent landed in the inbox almost immediately.</li> <li>Can send from any from name/address.</li> </ul> <p><strong>Conclusion</strong></p> <p>SendGrid was the best with Postmark coming in second place. We never saw any hesitation in send times with either of those two - in some cases we sent several hundred emails at once - and they both have the best ROI, given a solid featureset.</p>

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