Bulk E-Mail :: Mail Merge 2,000 Emails a Day

I need a mailer who I can send a excel spreadsheet of emails to , who can send out in quick order a email blast for us. We will provide template, and vendor should be able to mail merge fields in. We will send about 2,000-3,000 emails a day. We need send reports, opens, etc. The emails should be appearing from one of our email addresses, but send from your smtp servers as we do not have bulk mailing ability in house. Must be available 9am-5pm CST (US). Available on skype, and email. fluent english Bid on sending 2,000 emails.