Mailchimp Transactional Email (Mandrill) vs. Postmark

Overview
ProductRatingMost Used ByProduct SummaryStarting Price
Mailchimp Transactional Email (Mandrill)
Score 7.8 out of 10
N/A
Mailchimp Transactional Email (formerly Mandrill) is designed to allow users to deliver fast, personalized transactional emails using API or SMTP.
$0
per month
Postmark
Score 5.1 out of 10
N/A
Postmark is a fast, reliable email delivery service designed for transactional emails. It ensures high deliverability, scalability, and real-time email tracking, providing developers with the tools to send critical notifications securely and efficiently.
$15
per month
Pricing
Mailchimp Transactional Email (Mandrill)Postmark
Editions & Modules
Free
$0
per month
Essentials
$13
per month
Standard
$20
per month
Premium
$350
per month
Basic (10,000 Emails per Month)
$15.00
per month
Pro (50,000 Emails per Month)
$60.50
per month
Platform (120,000 Emails per Month)
$138.00
per month
Offerings
Pricing Offerings
Mailchimp Transactional Email (Mandrill)Postmark
Free Trial
YesYes
Free/Freemium Version
YesYes
Premium Consulting/Integration Services
NoNo
Entry-level Setup FeeNo setup feeNo setup fee
Additional Details
More Pricing Information
Community Pulse
Mailchimp Transactional Email (Mandrill)Postmark
Considered Both Products
Mailchimp Transactional Email (Mandrill)
Chose Mailchimp Transactional Email (Mandrill)
We were already using Mailchimp email marketing product and then while exploring different solutions, we went ahead with Mailchimp Transactional Email (Mandrill) only considering our requirements which has mix of reliability and pricing. Few things that stand out with Mailchimp …
Chose Mailchimp Transactional Email (Mandrill)
Here the Mailchimp is user understandable whereas in the Zift it gets complicated to use so that is the drawback of this tool.
Chose Mailchimp Transactional Email (Mandrill)
I haven't personally used Sendgrid or Klaviyo before because we had been using Mandrill already. When I joined the company, however, I believe it's overall functionality paired with their price point was more competitive than other solutions out there at the time. With how …
Chose Mailchimp Transactional Email (Mandrill)
I used MailKitchen for some time but I was not satisfied with its results. The unsubscribe rate was very high in that tool, though I don't know the reason for that. So I changed it. I found Mandrill good for my business because its unsubscribe rate is almost negligible and the …
Chose Mailchimp Transactional Email (Mandrill)
Best technical market reviews and more options available. Mandrill is a cheaper option and easy to manage. It is an excellent option for small and medium business.
Chose Mailchimp Transactional Email (Mandrill)
What I like better about Mandrill than Mailgun is that Mandrill has integrated Template management. You can issue an email to be sent with a template and submit merge variables along with the email data. Doing this with Mailgun means you have to roll your own template …
Chose Mailchimp Transactional Email (Mandrill)
They're both fairly comparable, though MailChimp made you jump through a few more hoops to use the service, though these were put in place to maintain server integrity in order to reduce bounce rates. I haven't seen a difference, so this was really more of a pain point than …
Chose Mailchimp Transactional Email (Mandrill)
Amazon SES was a service we evaluated before eventually landing on Mandrill. SES is very affordable, but some of our less technically-inclined employees found it difficult to use. We also found the API to be lacking in meeting our needs. And as an existing paid MailChimp …
Chose Mailchimp Transactional Email (Mandrill)
So we actually work with clients across all of the platforms listed above, but Mandrill has a huge ease of use bonus in its favor, especially when working with clients who are setting up a Cart Recovery style marketing campaign for the first time or are looking for a bit of a …
Chose Mailchimp Transactional Email (Mandrill)
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 …
Chose Mailchimp Transactional Email (Mandrill)
Being first a MailChimp customer, moving to using Mandrill as a transactional API based solution was an easy and obvious solution. At the time of evaluation Mandrill's API was far superior to SendGrid's API.
Postmark
Chose Postmark
In my opinion, SendGrid is complete garbage compared to Postmark, it's not even a comparison. I had issues with emails being sent to spam using SendGrid IPs. The dashboard is inferior, the setup is fairly comparable in difficulty, and ongoing visibility is inferior.
Chose Postmark
I've also used AWS Simple Messaging Service (SES) but couldn't select it from the above, as well as the old one Mailchimp used to run and shut down. We had big deliverability issues with those services, inconsistent but often for self-hosted email providers and free email …
Chose Postmark
They are a bit different and, in many cases, it makes sense to use both Postmark and Mandrill. Aside from these two, I don't have experience with other email delivery services. Both tend to be extremely reliable and rarely fail to send and deliver emails. Both are …
Chose Postmark
We found Postmark early on and have not looked back. There has never been a need to reevaluate the solution, as its cost is fair and the service has functioned as expected. We regularly recommend Postmark to our partners.
Chose Postmark
We felt Postmark's focus on transactional emails and their use of shared domain reputation made them stand out. We also like their user interface and ability to have many virtual email servers. Pricing was competitive and after a trial we saw a big increase in deliverability …
Chose Postmark
In terms of UI and deliverability, Postmark really blows other ESPs out of the water. We've seen a huge improvement in delivery rates, especially for Outlook/Live/Hotmail email addresses.
Chose Postmark
I have briefly used Sendgrid and it provides similar functionalities. However, I have not used it extensively to express a complete opinion.
Best Alternatives
Mailchimp Transactional Email (Mandrill)Postmark
Small Businesses
Mailjet
Mailjet
Score 9.0 out of 10
Mailjet
Mailjet
Score 9.0 out of 10
Medium-sized Companies
Mailjet
Mailjet
Score 9.0 out of 10
Mailjet
Mailjet
Score 9.0 out of 10
Enterprises

No answers on this topic

No answers on this topic

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User Ratings
Mailchimp Transactional Email (Mandrill)Postmark
Likelihood to Recommend
9.0
(0 ratings)
10.0
(0 ratings)
Usability
9.0
(0 ratings)
9.0
(0 ratings)
Support Rating
6.7
(0 ratings)
9.4
(0 ratings)
User Testimonials
Mailchimp Transactional Email (Mandrill)Postmark
Likelihood to Recommend
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
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If email deliverability is important, then Postmark is king. I've used all sorts of providers, with dedicated IPs and without. Postmark has always had the best deliverability and has resulted in the least amount of customer service time wasted dealing with users who simply did not receive an important email from us. It is pricier than other options, but it's well worth it if deliverability is at all important to you.
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Pros
  • 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.
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  • Excellent real time tracking of production server.
  • Automated reporting is very nice. Great to not have to pull reports manually.
  • User management is very easy.
  • Cost effective.
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Cons
  • 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.
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  • Not many cons since it's pretty straightforward, and if email delivery service was often impacted, we'd most likely find a new provider.
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Usability
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.
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The only thing that confused me initially was that if you don't put a specific sender email into the Wordpress plugin settings (I use Postmark exclusively with Wordpress site), it won't send emails. I thought that having selected the option to send via any @domain.com email, I wouldn't need to fill out a specific email to send from, but that isn't the case. I sorted that out quickly with support.
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Support Rating
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.
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Fortunately, the support is not often needed, but when it is, they are available and ready to dive into your needs and often your customer's needs. It's a bad day when you have to call your email delivery service provider, it means that your own customers most likely are calling your support team, and you're calling to see what the issue is. Postmark makes this process simple, and they own their mistakes. Always nice to see that.
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Alternatives Considered
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.
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In my opinion, sendgrid is complete garbage compared to Postmark, it's not even a comparison. I had issues with emails being sent to spam using sendgrid IPs. The dashboard is inferior, the setup is fairly comparable in difficulty, and ongoing visibility is inferior.
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Return on Investment
  • 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.
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  • It is really "set and forget." I have not had any issues that I've needed to deal with. It just works.
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ScreenShots