Okay ... I tried the free version, and within 15 minutes downloaded the paid version. This is, without a doubt, the best Androin email app anywhere (the huge number of options I have to configure it to act exactly as I want it to are amazing).
Just have a single issue: When I try to Compose a new email, and send it, I get the following:
"451 See [can't post external links]
Open the message and Send again"
I'm using my corporate account to send and receive ... POP3 receive (which works perfectly), SMTP to send. (The account is hosted at Register.com).
The outgoing (SMTP) settings are correct. I know this because, weirdly, when I reply to an email, the email goes out perfectly. It is only when I try to compose an email when I get that message.
Please help? EVERYTHING is perfect except for that one glitch (but it is a pretty big glitch).
You can email directly at bfoster5000 at gmail dot com if you wish.