I use mandrill as well and it's been really good. Easy to setup, reliable, good features to monitor things, etc... And free for up to 12000 emails/month. Pretty

I use mandrill as well and it's been really good. Easy to setup, reliable, good features to monitor things, etc... And free for up to 12000 emails/month. Pretty reasonable after that. Otherwise you could just send through a gmail account as well if it's not going to be that many of them.