[redguava]

I don't know about how they do it, but I use both currently.

SendGrid for one-off emails (ie. a user signs up for an account, their welcome email).

MailChimp for email marketing (we send newsletters via them).

MailChimp has since released Mandrill that caters to the one-off emails, but we were already with SendGrid by then.

[dblock]

Same thing for us at Art.sy. We have humans doing targeted emails, with MailChimp.

Sendgrid is an SMTP relay with high deliverability. That's all it does. You can find who received what on the website, too. With MailChimp you have to setup lists and all that unnecessary stuff.

There's one big drawback to using both: we currently have to sync our users to MailChimp and sync MailChimp unsubscribes back. Hence we're going to get rid of MC eventually when we can build good enough UI to manage mass emails.

[continuations]

I see. What make SendGrid better for one-off emails and MailChimp better for email marketing?