Submission + - Mailing out Newsletters without getting blacklist
chesternerd writes: "A client of mine that produces 3 daily e-newsletters, and plans to produce upwards of 8 per day, has about 1500 subscribers currently. They are sending out 1500 emails per day, and expect this number to grow to 5000 per day by the end of the year. What solutions exist to avoid getting their IP range blacklisted as a potential spammer? All clients receiving the newsletter have agreed in person, over the phone, to subscribe to the newsletter, so the emails are desired by the recipients. How do we avoid getting blacklisted?"