I plan on sending a weekly email to each of my users with an update on activities depending on their preferences. The problem is I am unsure if I should use Mailchimp or Mandrill for this. I was initially thinking about Mailchimp since I would send the emails in bulk, but then I realized that the emails will be somewhat tailored to each user, so I thought I would ask. Any thoughts?
I wouldn't use either. I would have said Mandrill until they coupled it more tightly with Mailchimp. I'd look at Mailgun, sendgrid, smtp.com, or similar.