Mailchimp Transactional Email (formerly Mandrill) is designed to allow users to deliver fast, personalized transactional emails using API or SMTP.
$0
per month
Sinch Mailgun
Score 8.5 out of 10
N/A
Mailgun is a transactional email API service which was owned and supported by Rackspace (acquired in 2012) and then spun off in 2017 as an independent and standalone entity. It is now supported by Sinch since that company's acquisition of Mailgun and Mailjet, through acquiring Pathwire.
Any system that requires transactional email message functionality as an external service. The benefits of a well managed and vetted server to maintain reputation as well as being reliability is well worth the effort needed to integrate towards the API specs
Even with the list of negatives, Mailgun is still a great solution for how easy it is to work with and how ubiquitous it is to find examples and libraries out there on the internet. The company has great support and are usually quick to address and fix things. I do think they have some room for improvement with the lack of templates and the outdated UI log handling/filtering.
Enables transactional email sending via MailChimp which opens up a ton of communication opportunities via Order Confirmation, Cart Recovery, or other transactional emails.
Monitors sub-accounts send reputation and notifies of high bounce/rejection rates.
Has a very friendly, usable UI and enables smaller companies to dedicate resources to transactional emails without as much setup work as other transactional platforms.
Our system adds a notification when a donor has opened an email; however, we've found inconsistencies with the system where a donor may have opened an email, but Mandrill hasn't sent that notification to our app.
For the scenario above, when we've reached out to their support, the response has been that it is what it is. I'd like to see the supports take be focusing on improving the platform rather than saying it is what it is.
Mailgun is used by spammers, and sometimes your assigned mail server will get blacklisted because of other users on it.
If you end up with a mail server that is blacklisted, your mail will go nowhere. And, below the $300 and up pricing tiers, there is no one at Mailgun to help you get this problem resolved. You are just stuck.
In other words, Mailgun is unreliable as a mission-critical service. I would strongly recommend using a service with better processes in place.
It did the job for us and we were happy with the delivery rates of the email, analytics and customisation available while integrating it within our platform.
The time for the initial setup is very quick, since you can start sending (thus developing) from their sandbox in no time. The actual configuration involves, as usual, some DNS changes that may require time but are well explained and documented. Once everything is set up, there are a lot of monitoring tools that you can use to optimize your lists.
There have been a few minor outages through the years, but nothing more than a few minutes. These small outages are to be expected in any kind of a SaaS product, but Mailgun handles them very well. We designed our software to just retry sending after a while if there is an outage. As far as I know, we have never had to do more than a few retry cycles. This is all automated on our end, so we rarely even notice. Our customers have never noticed any mail sending outages.
The API and the deliverability of emails is excellent. Their API is very responsive and performs perfectly fine. I have no complaints there. Their management interface though (accessed through the web) is pretty slow though. Searching through lists of emails when I'm tracking down a problem for a customer can take 10+ seconds which is annoyingly high for a modern web app.
We haven't had to use support. The platform uptime is pretty much 100%, and any time we've had an issue, the staff has responded quickly, but honestly, the last time we had to contact Mandrill's support was probably well over a year ago. Once you're up and running, it works.
MailGun's support staff is both friendly and helpful. They were very instrumental early on with helping out during the setup process by answering questions, providing documentation on best sending practices, detailing information about the advantages of sending from a dedicated IP rather than an IP pool, and helping us to remove ourselves from blacklists.
Sendgrid offers a lot of the same features as Mandrill, but goes a lot further in helping you achieve maximum deliverability for your e-mails. They have a respectable free tier for sending as well as receiving emails, and their paid tiers are very reasonably priced. I don't have as much experience with Mailgun, but they were acquired some-time ago by Rackspace and Rackspace has a reputation for buying companies and not investing additional resources into them. So, at the time of evaluation (a few years ago) their feature sophistication was lagging behind Mandrill and Sengrid.
Not really a con but I typically choose SendGrid over Mailgun simply because I've been using SendGrid for so long. Overall, SendGrid and Mailgun are both rock solid and very affordable. You could probably flip a coin on which one to use. I would definitely look into SendGrid's Accelerate Program too.
Over the past six years, Mailgun has scaled with our growth very easily. We haven't had to make any code changes to handle our larger volume today, and their pricing has scaled naturally with our growth. As far as I know, there is nothing we will need to do in order to grow 10-fold. Mailgun just handles the load really well.
Mandrill ensured high deliverability for messages sent to marketing leads in our customer funnel. This was incredibly important for making sure we captured leads early and often.
Mandrill was a solid and efficient way to send transactional notification messages to customers using our web-based payment system. With online payments, quick response is key, and Mandrill absolutely delivered.
Mandrill messages meant that our internal team always received notifications about leads, new sales, or problems with our systems in a timely manner. As a small startup, moving quickly was essential and we couldn't afford to miss a beat. Mandrill made sure we didn't.
