With recent improvements in the SGL_Emailer2 lib your can now have your HTML emails automatically converted to text. It's also much easier to define your email format, be it text, html or both. For more info see
We've also created the Email Queue module, with it you can control the rate at which you send large batches of emails by storing your data and sending it later. By default a DB backend implmentation is included. For more info see:
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