Recently moved our company from Mandrill to SendGrid - mainly because we were having deliverability issues with Mandrill.

We're definitely a lot happier from that perspective (and obviously given this issue I'm glad we moved), and overall it's really good. A couple of things to be aware of:

- Unlike Mandrill you can't send with a test API key and then view the emails. We end up sending real emails to a test inbox, which has some pros and cons - but cons include it costing email sends, and Gmail being awkward and silently de-duping sometimes.

- You also can't view sent email content, at all (beyond the subject). Mandrill you can, Sendgrid don't seem to save it.

- Mandrill/others probably has the same issue, but SendGrid without your own IP sends emails to new recipients extremely slowly. And they lock your whole account while they're doing it, password resets won't send to existing recipients and nor will test emails to your test inbox.

- You also only get 3 days of email send history, you can pay for up to 30 I think. I'm not sure what the rule was with Mandrill but they seemed to keep a lot more available, though their search would time out most of the time so I'm not sure how much was really there and accessible.

Mandrill is 30 days of send history with 90 days of stats.

We're actually moving to SES as we speak, and the move should be done in a few hours. It's something we had planned, but it just sucks that this is how a paid service gets terminated.