Bulk Email Deployment

We at C.C.R. run a non-profit Roman Catholic Religious Website at www.catholicrevolution.org. Having outgrown the usual free services, we are looking for a bulk email deployment service to target our 1500 or so (and growing) list of email recipients. The size of each email will be varied but will only consist of published articles in HTML or rich text format and religious content. The service provider will need to send these bulk e-newsflashes on 1-2 days every week. This will be subject to review as the list grows. Each file will be provided pre-formatted to HTML in advance by us. This is a non-profit religious bulk-mailing initiative and not unsollicted SPAM. Please provide your best bid for on monthly basis, a lead time to completion and your particular service terms and conditions. Kind Regards and God Bless. Brother Saul