Email API Blog - Cloudmailin

Blog

A selection of articles by the CloudMailin team relating to Email (deliverability, receiving and sending), Programming, Start-ups and Cloud Technologies.

Changelog 2024-11-05

Test Mode for SMTP

We've extended the test_mode feature for outbound SMTP to allow you to test your outbound SMTP configuration without actually sending the email.

CloudMailin Team

Changelog 2024-09-25

Send email attachments to AWS S3, Azure or Google Storage

Today we're excited to announce that all storage providers are now available for both attachments and full message storage.

CloudMailin Team

Header Small Image Announcing Email Layouts (Beta): Best Practice Responsive Email Designs

Announcing Email Layouts (Beta)

Unlock the full potential of your transactional email campaigns with CloudMailin's responsive layouts (Beta). Our best practice email designs allow you to get started sending professional, well-designed, and mobile-friendly emails effortlessly.

CloudMailin Team

Changelog 2024-06-04

DMARC Report Alpha

We're excited to announce that we're launching an alpha of our DMARC analytics service. DMARC Reports let ISPs report back on who is sending email on your behalf. This can help you identify any unauthorized senders and improve your email deliverability.

CloudMailin Team

Changelog 2024-05-28

Absolute email status times

Our latest dashboard has been released using UTC time as the default for all inbound and outbound email statuses. This makes it easier to find details of historic email events. However, should you wish to change back to the relative time you can simply click the clock icon to switch.

CloudMailin Team

Changelog 2024-05-28

Realtime updates for dashboard

Our latest dashboard has been released with a new real-time update for emails sent and received. Working with CloudMailin to send emails should be easier than ever.

CloudMailin Team

Changelog 2024-04-22

Set DKIM Records with a CNAME (Beta)

CloudMailin has used 2048 bit keys for DKIM records for some time now as we're committed to providing the best security for our customers. However, the process of adding these records to your DNS can be a little tricky.

CloudMailin Team

Header Small Image What is a transactional email a 2024 review?

What is transactional email?

What is transactional email and does it compare to other types of email? Next we'll discuss maximising email deliverability and what makes the best transactional email platform.

CloudMailin Team

Changelog 2024-03-28

Fixed: email attachment encoding with text/* content type

We've fixed a small issue where attachments with a text/* content type were being encoded incorrectly. This was causing some characters to be displayed incorrectly once stored.

CloudMailin Team

Changelog 2024-03-20

New: email attachments via the API

It's now possible to set attachments via the API when creating a new address. Please see the API documentation for more detials.

CloudMailin Team

Changelog 2024-02-08

New: deliverability tests check DMARC, DKIM, SPF

We've added a tool to let customers check deliverability of their emails. You can check any sent email for DMARC, DKIM and SPF records that are correctly setup just by sending to a CloudMailin address.

CloudMailin Team

Header Small Image Receive Email with Python and Django in 2023 (Updated Examples)

Receive email with Python and Django in 2023

CloudMailin allows you to receive any volume of email from within your website or application. Although we've had example code showing receiving email with Python for some time the examples needed a refresh to bring them up to date. We've just updated our just updated our documentation to include examples of receiving email in Python with Flask and Django.

2023-09-25

Steve Smith

Changelog 2023-09-21

See received email attachment details in the dashboard

We've added a new feature to the dashboard that lets you see details of attachments received with inbound emails. This is useful for debugging and understanding the content of emails that are sent to your CloudMailin address.

CloudMailin Team

Header Small Image New email message previews for CloudMailin outbound sent email

New email previews for sent email

We are excited to announce that CloudMailin now allows you to preview sent email messages whether they were sent via SMTP or our Email API.

CloudMailin Team

Changelog 2023-08-20

New: added outbound email message previews

It's now possible to see previews of outbound emails that have been sent. A blog post with more details is coming soon.

CloudMailin Team

Header Small Image How to receive email with Next.js, the app router and Typescript

Receive email with Next.js

Next.js is a React framework that allows you to build static and server-side rendered applications. In this article, we'll explore how to send and receive email using CloudMailin and Next.js's API routes written in Typescript.

Header Small Image How to Receive Email with Supabase and Typescript

Receive email with supabase

Supabase is an open-source database, authentication system, and hosting platform that allows developers to quickly and easily build powerful web-based applications. It provides an API that enables developers to connect, query, and manage data on their web projects and mobile applications.

Header Small Image Now your team can manage your Email API

Now your team can manage your Email API

For over 12 years CloudMailin has provided our customers with the ability to receive email via API as a webhook. In recent years we've also added an outbound email API that allows customers to send transactional email via HTTPS (or send messages via SMTP), making inbox delivery clear and simple.

CloudMailin Team

Header Small Image Sending and receiving email in Go (GoLang) in 2023 with CloudMailin

Sending and Receiving email in Go

There are multiple ways to send and receive email with Go (Golang). In this article we'll take a look at a couple of them and why we think using HTTP is actually a great method vs SMTP, IMAP and POP3.

CloudMailin Team

Header Small Image What is a webhook and how does email to webhook work?

What are email webhooks?

In this article we discuss webhooks, what they are and how you can use webhooks for both email to webhook and sending email events.

CloudMailin Team

Header Small Image Encrypted Full Email Storage / Backup API for AWS S3, Google Cloud Storage, Azure Blob

Full Email Storage / Backup API

CloudMailin allows you to store or backup an entire email in either EML format or fully parsed JSON. Full Emails are stored within an AWS S3 bucket, Azure Blob Storage or Google Cloud Storage and delivered to your webhook, creating an encrypted backup with API for your web application.

CloudMailin Team

Header Small Image Which SMTP port should I use in 2021?
SMTP Email Port 25 vs 465 vs 587 vs 2525?

Which SMTP port should I use for sending email?

Learn the difference between the main SMTP client and server ports (Port 25, 465, 587 and 2525), which one you should choose, what Start TLS is, and why you shouldn't use port 25 to send email messages.

CloudMailin Team

Header Small Image Receiving Email Attachments in AWS S3 is changing

HTTPS Links for S3 Attachments

CloudMailin allows you to receive email attachments directly to Cloud Storage such as AWS S3. Starting Oct 15 2021 these links will use HTTPS.

CloudMailin Team

Header Small Image Using TypeScript with AWS Lambda and SAM

TypeScript and AWS Lambda?

In this article, we'll discuss how to get TypeScript working with AWS Lambda and AWS SAM in just a few easy steps.

Header Small Image What is AWS SAM? Building an HTTP API with Amazon Web Services Serverless Application Model and Lambda

Building an HTTP API with AWS SAM and Lambda

In this article, we cover what AWS SAM is, how to get started and how it helps deploy serverless applications and Lambda functions to Amazon Web Services. We'll use JavaScript here, but AWS supports a range of languages.

Header Small Image Sending and receiving email in Node.js and TypeScript in 2023 with CloudMailin

Sending and Receiving email in Node.js

In this article, we'll cover a couple of ways to send email in Node.js and TypeScript. Following this we'll outline a quick and easy way to receive email with CloudMailin.

CloudMailin Team

Header Small Image Receiving email attachments with Google Cloud Storage

Email attachments with Google Cloud Storage

CloudMailin can parse the attachments from email and send the email attachment to Google Cloud Storage automatically.

CloudMailin Team

Header Small Image Using Basic Authentication with AWS API Gateway and Lambda

Basic Auth with AWS API Gateway & Lambda

Basic authentication is one of the oldest and simplest ways to authenticate HTTP Traffic. Although it has been superseded by a range of different options it's still one of the easiest and most convenient methods, as long as you're using HTTPS.

CloudMailin Team

Header Small Image Receiving email attachments with Azure blob storage

Email attachments with Azure

CloudMailin allows you to receive emails via an HTTP POST, essentially sending email to a webhook.

CloudMailin Team

Header Small Image Upgrading the TLS minumum version to TLSv1.2

Email encryption upgrade

Security has always been a priority for us at CloudMailin. As an email service provider it's often necessary for us to balance customer requirements and usability and where possible we always give our users a choice. For a while now we've supported both TLS 1.2 and TLS 1.3 on our platform, but we've also allowed connections from servers using TLS versions lower than this if the customer requests it.

CloudMailin Team

Header Small Image Deprecating our original format

Deprecating the original format

When we first started over 10 years ago our original HTTP Webhook format was our only option. The original HTTP Format was a multipart/form-data format that was opinionated, it made a lot of decisions about how you might use it.

CloudMailin Team

Header Small Image What is DMARC?

What is DMARC?

In an earlier article, we covered what DKIM and SPF can do for a domain. DMARC is the extension that brings it all together. DMARC stands for "Domain-based Message Authentication, Reporting & Conformance".

CloudMailin Team

Header Small Image What are DKIM and SPF and how do we use them?

What are DKIM and SPF?

Sender Policy Framework (SPF) and DomainKeys Identifier Mail (DKIM) are both methods of identifying email senders.

CloudMailin Team

Header Small Image Understanding Email Reputation

Understanding Email Reputation

Email sender reputation is crucial when sending an email. Since the early 1990s people have been sending Unsolicited Bulk Email or SPAM and it's critical you understand how to check and manage your reputation.

CloudMailin Team

Header Small Image Automatically uploading email attachments to Amazon S3

Email attachments with AWS S3

For a while now CloudMailin has allowed you to send your attachments to S3. We call this feature attachment stores, but what exactly does this mean?

CloudMailin Team