We use and love Postmarkapp (http://www.postmarkapp.com). They have an awesome interface, and SMTP relaying is reliable, and nice reports. MailGun seems to go further than Postmarkapp though, in that they doing inbound automatons.
Any recommendations of data centers down south in the bay area? Also, have any estimates what we should pay approx for 1/3 cabinet, and per Mbps of bandwidth?
Thanks for the reply. Where is their datacenter? Any idea of ballpark price for 1/3 cabinet, and price per megabit? How can we get in touch with you, to get us a quote and discounts? Gracias.