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Mandrill vs Postmark: What are the differences?
Developers describe Mandrill as "Send transactional, triggered, and personalized email, then track results". Mandrill is a new way for apps to send transactional email. It runs on the delivery infrastructure that powers MailChimp. On the other hand, Postmark is detailed as "Email delivery for web apps - done right". Postmark removes the headaches of delivering and parsing transactional email for webapps with minimal setup time and zero maintenance.
Mandrill and Postmark belong to "Transactional Email" category of the tech stack.
Some of the features offered by Mandrill are:
- Inbound Email- Set up inboxes for Mandrill to control. When they receive email, we’ll make an API call to your app with all the relevant information, so you don’t have to worry about what’s happening behind the scenes.
- Webhooks Support- Create custom event notifications, keep track of new signups and unsubscribes in real-time, get a notice of every spam complaint so you can flag them in your database.
- Rules Engine- Modify the content of email coming through Mandrill without having to involve developers. For example, you could tell Mandrill to take any email coming from confirmation@yourdomain.com, give it a new template, and add Google Analytics tracking.
On the other hand, Postmark provides the following key features:
- Create a new virtual server- Instant access to our infrastructure, no waiting required. Create as many servers as you want, for each of your web applications and environments.
- Drop code into your app- Swap in our SMTP endpoint, or get started with our APIs using one of our send API libraries for Ruby, Rails, .NET, Python, PHP, and more.
- Send emails and track delivery- A beautiful interface to monitor volume, bounces, spam complaints, and send activity. View full email content to troubleshoot issues.
"Simple installation" is the top reason why over 188 developers like Mandrill, while over 17 developers mention "Simple" as the leading cause for choosing Postmark.
Stripe, Nubank, and Bukalapak are some of the popular companies that use Mandrill, whereas Postmark is used by Swat.io, Docplanner, and Walls.io. Mandrill has a broader approval, being mentioned in 2313 company stacks & 208 developers stacks; compared to Postmark, which is listed in 67 company stacks and 15 developer stacks.
For transactional emails, notifications, reminders, etc, I want to make it so writers/designers can set up the emails and maintain them, and then dynamically insert fields, that I then replace when actually sending the mail from code.
I think the ability to use a basic layout template across individual email templates would make things a lot easier (think header, footer, standard typography, etc).
What is best for this? Why would you prefer Mailgun, SendGrid, Mandrill or something else?
The only transactional email service that I've been able to stomach is Postmark! It is by far the easiest (and quickest to get feedback from) service that I have come across. While drowning in attempts to debug Mandril, Mailgun and others I get quick feedback from Postmark in what I need to do.
Postmark for the win!
If you need your emails to be sent in a time-sensitive manner, I'd recommend SendGrid. We were using Mailgun and the lag because they aren't "transactional" in nature caused issues for us. SendGrid also has the ability to do dynamic templates and bulk send from their API. I don't know that they have the shared layout ability you mentioned, though.
We are using more extensively Mandrill.
It is a ok tool, which gives you the power for emailing with nice set of features.
The templates editing and management is a bit tricky, but this is mostly related to email templates in general, which are hard to create and maintain.
I do not think you can share the parts of the templates. You can have your predefined templates with possibility to insert dynamic content.
They provide a limited possibility to preview and test your templates.
The template editor is text only. For the better editors checkout http://topol.io or https://mosaico.io
Unfortunately, I do not have experience with the other tools and possibilities to manage templates.
At this stage, all of the tools you mentioned do email delivery pretty well. They all support email templates as well. Here are some considerations:
- Twilio owns SendGrid. If you're an existing Twilio customer, in my opinion that's a good reason to use SendGrid over the other solutions. The APIs are solid, and Twilio has excellent developer tools that allow you to create interesting automations (which is important for scaling).
- Mandrill was created by MailChimp, who have massive experience with email delivery and specifically with emailing beautiful email templates.
- Mailgun is a tool on its own. Like the other two, it supports mail templates and is built to be controlled almost exclusively via APIs.
SendGrid and Mandrill have pretty nice WYSIWIG template editors as part of their platform. Not so sure about Mailgun.
So for me the considerations would be: 1. How easy is it for you to integrate with their API? How complete is their API in terms of your own specific needs? 2. Prices: Which one works best for my budget? 3. Am I OK with editing the templates elsewhere (or even by hand), and then pasting the code into Mailgun? Or do I want the comfort of Mandrill or Sendgrid with their WYSIWYG editors?
Personally I'd go with Twilio, simply because it's such a massive ecosystem they are less likely to go bankrupt, and their APIs are rock solid.
We chose Postmark as our transactional email service for several reasons:
Laser-focus (at the time) on transactional email - their success/speed/reliability with delivering transactional email is amazing. Note, they have now branched out and offer marketing/broadcast email services too.
Developer-friendly - Awesome docs and resources. Their Rail gem integrates directly with ActionMailer so nearly all of our code worked without changes.
Servers - You can set up "Servers" for different mail streams/workflows to keep things separate and easy to review.
Bootstrapped - Wildbit (who makes Postmark) is bootstrapped just like the Friendliest.app and they offer a service credit to other bootstrapped startups.
We did a quick test on the reliability of these three common email services, sending a few emails an hour at random intervals.
Unfortunately, none of them had 100% availability over the 30 day test. I don't understand why this is so hard?
Mailgun performed the best with the most reliability and fastest response times. Mandrill was notably bad.
Of course we chose Coresender to send our own transactional emails :) So I thought I'll let you know how we use it.
We set up separate sending accounts for all company needs, eg. transactional emails, monitoring alerts, time to inbox. We even configured our office printers to send emails through Coresender.
We have a real-time and extremely usable view into what emails go through each account, so each time anybody reports an email not arriving we're able to assist them in a few seconds
We utilize our message timeline feature, so we can learn eg. if people are clicking on password reset links
We always know how many of our onboarding emails are being opened which helps us improve them
Finally, we have full controll over our suppressions lists, so we can add (and remove!) from them whenever necessary.
To sum up, at Coresender we're eating our own dogfood and it helps us stay connected to the product and understand our customers better.
While building our authentication system, we originally picked Mailgun. However, emails took minutes to arrive and some of them didn't get delivered - or got delivered to spam.
We started looking for a new provider, and settled on Postmark. We love that they track time-to-inbox, it makes me feel they really care about going above and beyond to provide a good service.
Pros of Mandrill
- Simple installation189
- Great api141
- Generous free allowance to get you started123
- Cheap and simple114
- Trackable99
- Well-documented59
- Doesn't go to spam54
- Great for mailchimp users47
- Webhooks32
- Client libraries28
- Heroku Add-on7
- Easy to use6
- Meaningful Metrics5
- Free5
- Advanced Tagging and Reports3
- Mobile Access3
- Status Update3
- Very chimp-like2
- Great Documentation2
- love this service2
- Free Plan1
- Webhooks for bounce mail1
Pros of Postmark
- Simple18
- Great analytics10
- Email, done right8
- Easy setup5
- Heroku Add-on5
- Can review sent messages2
- Very inexpensive1
- Exceptional support1
- Pay per message1
- Great support1
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Cons of Mandrill
- Really hard to pull analytics out via api1
Cons of Postmark
- No 24x7 support1
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