I had posted another thread in regards to one of my clients having issues sending mail, primarily to Hotmail users. He is now set on the idea of going through a third party. Off the top of my head, I know of: AWeber IntelliContact CampaignMonitor I haven't used any of them... does anyone have any recommendations on what service to use? Price is least important while guaranteed delivery is most important. (It's a 5,000 sub opt-in list)
Well I would recommend going yourself, but Aweber is alright for small, except I don't think they let you import data.