We use Mailgun at UserVoice.com for incoming mail. Of particular help to us: - All emails are converted to UTF-8 - There's always a 'plain' (text only) versi

We use Mailgun at UserVoice.com for incoming mail. Of particular help to us: - All emails are converted to UTF-8 - There's always a 'plain' (text only) version of the email sent to us, even if the original email only included HTML. - They offer a 'stripped-text' field, which lets us easily see the new part of an email thread. - Pretty great support