Introduction
Postmark is one of the best email service providers out there. With a simple interface, a wealth of features, and a free trial, it's a great way to send email with ease. But what if Postmark didn't work for you and you're looking for an alternative to Postmark? In this guide, we'll look at the best Postmark alternatives and see how they compare.
Features
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SDKs Available
Has Courier.com Integration
Threshold for free plan and dedicated IP
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The threshold for Mailgun is 5,000 messages/month and 300 messages/day for the free plan and no daily limit for the flex plan. With the paid plans(Foundation, Growth, and Scale), you have access to a dedicated IP and can send between 50,000 to 100,000 emails per month, depending on the plan you choose.Name:
A free plan on SendGrid allows you to send up to 100 emails per day; upgrading to a paid plan, you can send up to 1,500 emails per day and no more than 400 emails per hour. If you use the custom pricing or premier plan, you can send up to 1.5 million emails in a month with access to a dedicated IP.Name:
When you're on a sandbox account, you're limited to 200 emails/24hours. The number varies based on your request from Amazon via email if your account is out of the sandbox. With a custom plan, you have access to 3 dedicated IPs and can send over 2 million emails, and your fee will vary according to your specifications.Name:
SparkPost's thresholds vary per plan, beginning from 50,000 emails to about 1 million emails per month. The Premier plan allows you to use a dedicated IP and send up to 5 million emails. In contrast, the Enterprise plan allows you to send over 5 million emails with multiple dedicated IPs.Name:
The threshold for OneSignal is 6,000 requests/second for all paid plans and 150 requests/second for free plans. The Free, Growth and Professional plans allow you to use shared IPs, but when you subscribe to the Enterprise plan, you can use a dedicated IP and pay a custom fee depending on the number of emails.Name:
You can only send 200 messages/day. However, when you are on the custom plan, you access a dedicated IP, and there’s no limit to the number of emails you can send..Name:
The threshold for Mandrill is 12,000 emails and can be adjusted once you upgrade to a paid account. There are different paid plans, from a maximum of 500,000 emails to over 4 million emails. While a custom pricing plan will give you access to a dedicated IP and allow you to send up to 249 million emails.Features
SDKs Available
Mailgun:
javascript, php, ruby, go
SendGrid:
javascript, php, java, go, python, ruby
AWS SES:
javascript, php, java, go, python, ruby, php, c++
SparkPost:
javascript, php, python, java, go, c#
OneSignal Email:
javascript, php, java, swift, objective-c, c#
Mailjet:
javascript, php, java, go, python, ruby, C#
Mandrill:
javascript, php, python, ruby
Has Courier.com Integration
Threshold for free plan and dedicated IP
Mailgun:
The threshold for Mailgun is 5,000 messages/month and 300 messages/day for the free plan and no daily limit for the flex plan. With the paid plans(Foundation, Growth, and Scale), you have access to a dedicated IP and can send between 50,000 to 100,000 emails per month, depending on the plan you choose.
SendGrid:
A free plan on SendGrid allows you to send up to 100 emails per day; upgrading to a paid plan, you can send up to 1,500 emails per day and no more than 400 emails per hour. If you use the custom pricing or premier plan, you can send up to 1.5 million emails in a month with access to a dedicated IP.
AWS SES:
When you're on a sandbox account, you're limited to 200 emails/24hours. The number varies based on your request from Amazon via email if your account is out of the sandbox. With a custom plan, you have access to 3 dedicated IPs and can send over 2 million emails, and your fee will vary according to your specifications.
SparkPost:
SparkPost's thresholds vary per plan, beginning from 50,000 emails to about 1 million emails per month. The Premier plan allows you to use a dedicated IP and send up to 5 million emails. In contrast, the Enterprise plan allows you to send over 5 million emails with multiple dedicated IPs.
OneSignal Email:
The threshold for OneSignal is 6,000 requests/second for all paid plans and 150 requests/second for free plans. The Free, Growth and Professional plans allow you to use shared IPs, but when you subscribe to the Enterprise plan, you can use a dedicated IP and pay a custom fee depending on the number of emails.
Mailjet:
You can only send 200 messages/day. However, when you are on the custom plan, you access a dedicated IP, and there’s no limit to the number of emails you can send..
Mandrill:
The threshold for Mandrill is 12,000 emails and can be adjusted once you upgrade to a paid account. There are different paid plans, from a maximum of 500,000 emails to over 4 million emails. While a custom pricing plan will give you access to a dedicated IP and allow you to send up to 249 million emails.
Pricing (Monthly)
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Pricing (Monthly)
Up to 1,000
Up to 5,000
Up to 10,000
Up to 25,000
Mailgun:
$20
SendGrid:
$14.95
AWS SES:
$2.5
SparkPost:
$20
OneSignal Email:
$75
Mailjet:
$35
Mandrill:
$20
Up to 50,000
Pros & Cons
Mailgun is a cloud-based email service that offers developers and businesses of all sizes a complete toolkit for sending, receiving, tracking and analyzing their email campaigns. Mailgun offers a wide range of features, including an SMTP server, DKIM signing, RESTful API, and plugins. It also allows you to use third party services like Mandrill, Salesforce, or Mailchimp without the hassle of setting up APIs and managing your own servers.
Pros
- Mailgun is easy to set up.
- It has extensive and well-documented APIs.
- It has high throughput and offers quick email integration.
- It has support for email marketing.
Cons
- Mailgun has spotty historical reliability.
- Support has been poor since its acquisition.
When To Use
- Mailgun is great for freelancers plus small-, medium-, and large-scale companies.
- It is an excellent choice if you have developers handling emails since Mailgun is developer-focused.
- It is your best bet if you're working with the larger Pathwire/Sinch ecosystem.
- Also, it's a great choice when you need enterprise consulting services.
Founded in 2009, SendGrid is a cloud-based email service provider for delivering transactional and marketing email. SendGrid helps businesses communicate with their customers by providing a scalable, reliable, and secure SMTP platform. It provides comprehensive APIs that are easily integrated into any application or website. SendGrid handles billions of emails per month for over 200,000 customers worldwide.
Pros
- It provides detailed and valuable statistics on sent emails.
- There's a lifelong free plan.
- It's secure and safe.
Cons
- The documentation doesn't answer some questions and misses information.
- It is challenging to use for people with zero technical background or coding knowledge.
- The support system is slow and sometimes unresponsive.
- Emails almost always end up in spam folders for Microsoft email users.
When To Use
- It's great for brands and firms that want to get emails across in ample time.
- It is an affordable option if you send out newsletters but do not intend to profit from them.
- It is a great option if you're building software and need a reliable email service.
Amazon SES is a highly scalable email service that lets you send and receive email from your applications. You can use it to send transactional, marketing, and promotional messages. Their API simplifies the process of emailing by eliminating the need for organizations to maintain their own email servers or use third-party SMTP services.
Pros
- It is reasonably affordable.
- It is extremely reliable and very customizable.
- It uses a pay-per-use system.
Cons
- There's a limit to the daily email count you can send.
- It is inaccessible to unregistered users.
- It could be complicated to use for non-tech-savvy users.
When To Use
- It is suitable for developers on the AWS ecosystem who want to integrate a mailing system into their software.
- It is suitable for firms or brands to send bulk transactional emails.
- It is an excellent tool for email marketing.
Sparkpost is a cloud-based email service provider. They offer reliable, scalable email delivery solutions for businesses of all sizes. The company's core product is its cloud-based SMTP service that enables companies to send bulk email with deliverability rates comparable to those of the most popular consumer mail clients. Sparkpost also offers an API platform, which enables developers to build custom applications for sending and tracking emails via the Sparkpost service.
Pros
- The platform is reliable, fast, secure, and privacy-focused.
- It is easy to use and set up.
- It performs predictive and real-time analytics to prevent email delivery problems.
Cons
- It is designed for developers only.
- It does not support integrations with other systems.
When To Use
- It is excellent for enterprise SaaS, fintech, financial services, and martech companies.
- It is suitable for transactional email and multi-channel purposes.
- It is great for companies that need self-hosting options.
OneSignal is the leading mobile push notification service. OneSignal provides tailor-made mobile push notification services for iOS, Android, and web platforms. OneSignal Email is one of OneSignal's newest products, and it's designed to provide a more reliable and efficient means for sending transactional emails. OneSignal Email is ideal for marketing teams who send out lots of automatic email messages.
Pros
- You can import an already-existing list of subscribers.
- You can easily control in-app messaging and email subscribers from one account.
- You have access to extensive third-party support.
Cons
- It is relatively slow to send emails compared to other email notification providers.
- It returns frequent errors.
When To Use
- If you're looking to send push notifications to people who use your website, OneSignalEmail is a great option for you.
- It is an excellent choice if you or your brand have an audience spread across various platforms and manage them efficiently.
Mailjet is an email management solution that provides marketers and developers with a platform to design, deliver and track email campaigns. Mailjet was founded in 2010 and quickly became the leading email delivery service for high-volume senders. Mailjet launched its first API in 2013 and today Mailjet has the world's most powerful API, with over 100 integrations.
Pros
- There's a free version with up to 200 daily emails.
- You can have unlimited subscribers.
- It allows you to personalize your emails.
- It charges per number of emails and not per number of subscribers.
Cons
- There are not enough templates.
- It doesn't have a landing page builder.
- List management can be stressful.
When To Use
- Mailjet is a good option for startup email marketers.
- It's great for teams: different team members can build and design templates smoothly and in real-time.
- If you want to integrate an email service into your software, it's a good choice.
Mandrill is a transactional email service that is primarily used by SMTP. They provide an API and dedicated IPs to send bulk mailings. The API allows businesses to work outside the Mandrill application, meaning that they can integrate Mandrill into third party programs or software that they use for other aspects of their business.
Pros
- Mandrill uses custom frameworks to ensure high deliverability and security.
- There is smooth onboarding and a quick setup.
- It is compatible with and easy to integrate with various web frameworks.
Cons
- You have to use Mailchimp to have access to Mandrill, so you have to pay for two tools.
- You lose data on your delivered emails after 30 days.
- It has a confusing user interface.
When To Use
- If you are a community, organization, or person who sends emails to multiple people and needs a quick fix.
- It isn't for affiliate marketers.
- Mandrill is a good option if you want easily accessible and detailed reports on your emails.
Company Info
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Alexa Rank
Funding
Employee Count
Founded In
Headquarters
Trustpilot Rating
G2 Rating
Company Info
Headquarters
Recap
Most Popular :
Most Funded :
Most Established :
Most Highly Rated :
Cheapest (Small Plan) :
Cheapest (Bigger Plan) :
AWS SES
SparkPost
SparkPost
Mailgun
OneSignal Email
AWS SES
Conclusion
We hope you enjoyed this guide about Postmark alternatives. If you are looking for a new email service and Postmark did not meet your needs, we hope that we were able to direct you to an alternative that will. If you have any questions or need a personalized Postmark alternative recommendation, please feel free to contact us anytime via live chat or email (support@courier.com).
