I have a monthly sendout rate of about 150K emails, and was wondering if any of you got a good, reliable ESP to recommend (besides those 2 mentioned above)? (Don't have the resources to host and maintain my own mailing server + software yet) Would be great if i could get some suggestions from you guys, or even better some of you that might be using an ESP right now and is satisfied with their services. - reputable/in good standings with the ISPs - reliable support teams (respond to you in a timely manner and provide follow ups, confirmations etc) - Good technical setup (DKIM, DomainKeys, proper bounce msg records and able to show reports on bounce when requested, if best if they help out with whitelisting, FBL efforts/monitoring as well) - reliable interface and sending system.