How to navigate spam traps + integrating email replies into web apps

 Plus this month's updates and developer picks.
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Hey MailerSenders, 

Let's take five for a little slice of calm on your busy day (and pretend it's not for checking email). Here are the updates, announcements, and useful content we've got for you this month. 👇 

  1. How to avoid spam traps and protect your transactional email
  2. The latest MailerSend updates
  3. How to integrate email replies into a web app

How to stay spam trap free

MailerSend colleagues looking at a text

Spam traps are among the most damaging types of email addresses, and they can have a serious impact on your deliverability if you happen to send to one. 

And there's no magic forcefield you can put around your email setup to keep them away, but there are a few simple tactics you can use to stop them in their tracks.


Let's refresh, what are spam traps?

Spam traps are tools used by ISPs, anti-spam orgs, and blocklist services to catch spammers and other bad actors. They look like normal email addresses but they don't belong to a real person.

Sounds great, we all want less spam! But sometimes legit senders can get caught up in a spam trap too and, trust me, you don't want that. Spam traps can wreak havoc for your transactional email, resulting in:

  • Your IP being blocklisted
  • Damage to your sender reputation
  • Emails being rejected or delivered to spam
  • Violation of terms of service with your ESP
  • Disruption for users when important emails aren't being delivered


You only send emails to customers, are you safe?

Since spam traps are commonly picked up through sketchy email collection, there's less risk for transactional email as you're sending to users. But it's not completely risk-free. You can pick up spam traps through:

  • Bot activity
  • Inactive email addresses (ISPs repurpose real, inactive emails as spam traps)
  • Lack of email validation methods at signup


How to avoid sending to a spam trap

Using a combination of email validation and verification, email address confirmation, proper suppressions management, and regular cleaning of your user database, you can keep your email spam trap free and protect your deliverability. 

Hit the button below to check out our guide to learn more about the types of spam traps, how to identify and avoid them, and what you should do if you hit one.    

Latest updates 💫

In addition to oiling the cogs behind the scenes, these are the latest MailerSend updates since our last newsletter:

  • Increased security for PDF attachments: We've made PDF file attachments more secure with better automatic detection for viruses and malware.
  • Improved log filtering: You'll find that SMTP users and API tokens are now differentiated by their names in log filters, making it easier to filter for specific activity. 
  • Node.js SDK: Improvements and fixes have been made to address some minor reported issues.

How to integrate email replies into a web application

MailerSend colleague looking at his laptop

Inbound routing is a really cool feature that lets you do so much more than just forward emails. It's also a really effective way to integrate email content into your apps.

A lot of modern app functionality interacts with email; direct and anonymized messaging, customer support ticketing, and comment replies are just a few. And inbound routing is a simple way to do it.


Why use inbound routing?

Simply put, it takes away the challenges and complexity of custom email integration. Taking a DIY approach involves developing a solution to parse raw MIME content, ensure protection against malicious content, manage an inbound mail server, manage sender reputation, and more.  

But an out-of-the-box inbound routing feature takes care of all of that for you.

 

How to enable posting of comments and messages via email replies

In MailerSend, integrating email content into your app involves creating an API token, configuring an inbound route, and linking it via a webhook. This allows MailerSend to receive emails on your behalf, parse out irrelevant content, and forward it to the webhook. 

Head to the full article to learn more about this type of use case for inbound routing, and get more detailed steps on how to set it up in MailerSend.  

Have a great day,

Content Writer

MailerSend

228 Park Avenue South

PMB 54955
New York, NY 10003

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