No, I'm not a spammer! I do volunteer work for a non-profit social services agency. They send out daily email with several hundred recipients on each message. Their web hosting company has been flagging the email as spam due to the volume. So I'm looking for an email hosting provider that won't do that. (I can separate out the web hosting function; we just need mail hosting right now.)

They can't use something like MailChimp, Constant Contact, or Vertical Response because some of the mail is just inbound emails they aggregate and send out, and they don't want the overhead of "rebuilding" it in a "newsletter" service.

I think that Google Apps for Business might be a good solution, but the pricing is just too high for this under-funded non-profit. I've applied for the non-profit discount but haven't heard back yet.

Is there mail hosting service that might fit their needs? Thanks in advance.