For the first time in a few years I sent out a mass email newsletter to all my members. all 250K+ of them. After about 40k had been sent, I started get the emails blocked by yahoo and hotmail etc. I talked to my host and they said sending any mass emails like that will always be seen as spam and that i need to use a service that specializes in that instead of sending from my host server.
How do you guys handle sending out tens and hundreds of thousands of emails?