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Context.IO vs Mailgun: What are the differences?

Developers describe Context.IO as "A REST email API that makes it easy and fast to integrate your user's email data in your application". As soon as a mailbox is connected, we create a metadata index of its content starting from the most recent emails which become available from the API within seconds. Context.IO takes care of synching email data for your app so you don't have to build, scale and maintain this infrastructure yourself. Focus on what's unique to your business, we'll manage the technical details of integrating with arcane email server protocols. On the other hand, Mailgun is detailed as "The Email Service for Developers". Mailgun is a set of powerful APIs that allow you to send, receive, track and store email effortlessly.

Context.IO and Mailgun are primarily classified as "Email API" and "Transactional Email" tools respectively.

Some of the features offered by Context.IO are:

  • REST Beats IMAP
  • Contacts- Recipients and senders with stats like message count and latest sent/received.
  • Files- Each attachment has a unique id to access its content and history.

On the other hand, Mailgun provides the following key features:

  • Optimized Queue
  • Scheduled Delivery
  • MIME Assembly
Advice on Context.IO and Mailgun

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?

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Replies (4)
Justini Powell
Lead Developer at Watermark Community Church · | 4 upvotes · 88.5K views
Recommends
on
Twilio SendGridTwilio SendGrid

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.

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Mika Henriksson
Coder at mhenrixon Consulting · | 4 upvotes · 88.5K views
Recommends
on
PostmarkPostmark

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!

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Vit Ulicny
Recommends
on
MandrillMandrill

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.

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Aric Fedida
Founder, CTO at ASK Technologies Inc · | 1 upvotes · 87.9K views
Recommends
on
Twilio SendGridTwilio SendGrid

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:

  1. 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).
  2. Mandrill was created by MailChimp, who have massive experience with email delivery and specifically with emailing beautiful email templates.
  3. 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.

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Decisions about Context.IO and Mailgun
Slawomir Pucia
Head of Product at Coresender · | 5 upvotes · 80.8K views

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.

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Migrated
from
MailgunMailgun
to
PostmarkPostmark
at

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.

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Pros of Context.IO
Pros of Mailgun
    Be the first to leave a pro
    • 178
      Quick email integration
    • 148
      Free plan
    • 91
      Easy setup
    • 67
      Ridiculously reliable
    • 53
      Extensive apis
    • 30
      Great for parsing inbound emails
    • 25
      Nice UI
    • 22
      Developer-centric
    • 15
      Excellent customer support
    • 12
      Heroku Add-on
    • 4
      Easy to view logs of sent emails
    • 4
      Email mailbox management for developers
    • 2
      Great PHP library
    • 2
      Great documentation
    • 2
      Great customer support, love rackspace
    • 1
      Better than sendgrid not ask too many question

    Sign up to add or upvote prosMake informed product decisions

    Cons of Context.IO
    Cons of Mailgun
      Be the first to leave a con
      • 2
        Cost
      • 2
        No HTTPS tracking links supported
      • 1
        Emails go to spam due to blacklisted IP's of mailgun
      • 1
        Cannot create multiple api keys

      Sign up to add or upvote consMake informed product decisions

      What is Context.IO?

      As soon as a mailbox is connected, we create a metadata index of its content starting from the most recent emails which become available from the API within seconds. Context.IO takes care of synching email data for your app so you don't have to build, scale and maintain this infrastructure yourself. Focus on what's unique to your business, we'll manage the technical details of integrating with arcane email server protocols.

      What is Mailgun?

      Mailgun is a set of powerful APIs that allow you to send, receive, track and store email effortlessly.

      Need advice about which tool to choose?Ask the StackShare community!

      What companies use Context.IO?
      What companies use Mailgun?
      See which teams inside your own company are using Context.IO or Mailgun.
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      What tools integrate with Context.IO?
      What tools integrate with Mailgun?
        No integrations found

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