Integrate With SendGrid API
I have a feature request that may help many here. I think you should integrate Airmail with SendGrid API. What SendGrid does is it allows email to be sent through their system safely so it doesn't go into Spam folders or get bounced. I've recently been having many of my emails from one of my business accounts returned from AOL email addresses. SendGrid would help messages NOT go into the spam folder or returned. Plus, people will be able to see their sent messages and when people open them through their SendGrid as well. SendGrid allows free accounts for up to 12,000 emails sent a month. So I see this as a win for everybody. This would be an amazing update and I believe it really wouldn't take that much from experience.
Agreed. I just bought Airmail and like it a lot, but can't use it. My ISP limits recipients to 80 and I routinely send to a list of 250. I have one account set up with SendGrid to do that. If I can't use SendGrid, I can't abandon Apple Mail.
This is a must and I totally agree with myself...