Guides
Learn how MailSlurp works and how you can use it to achieve email related tasks using the official Javascript client. See the docs page for SDK and API documentation.
Basics
Install and configure MailSlurp using SDK libraries or REST API.
Send and receive emails from custom domains using the MailSlurp web app.
Manage team access to email inboxes within an organization.
Pages
How to create an inbox with MailSlurp to send and receive emails with.
Use regex or server side matching to extract email content
Read emails and attachments in code and tests. Wait for unread emails using long-polling or webhooks.
Use MailSlurp to test email related functionality using real email addresses.
Create an account and API Key. How to sign-up and login. Manage your settings and plan.
Configure inbox forwarders to automatically forward received emails matching rules you setup.
How to use custom domains with MailSlurp.
How to create email address with wild-card catch all using MailSlurp. Screenshots included.
Check email addresses are real and exist using MailSlurp email verification.
Use MailSlurp's attachment endpoints to upload, send, receive, and download attachments.
See if emails are opened by sending tracking pixels. Receive open events via Webhook or view which recipients opened an email in the MailSlurp dashboard
Receive emails with http webhooks. Webhooks let you respond to inbound email streams in real time on your server or within an application.
How to set inbox routing rules to block or allow inbound or outbound emails using patterns.
MailSlurp custom email address guide for catch all email routing.
Manage payment, access, and usage limits. How to upgrade, alter your subscription, and view invoices.
How to send emails and attachments in code and tests.
Email forwarding API for automatic email proxy. Setup auto-forwarding email aliases to mask a real email address.
How to manage MailSlurp team access to an organization.
Free test email address for testing emails online with web dashboard or REST API.
How to wait for emails in code that match search criteria. Pattern matching and regular expressions.
More
Avoiding email spam filters
How to send emails that don't trigger a spam warning.
BCC and CC in SMTP emails
BCC and CC in SMTP emails Most people who send out emails don’t have a clear understanding of the differences that …
Configuring DNS Records
How to enable custom domains with DNS Records in your hosting provider
Deno Email Apis
Send and receive emails in Deno JS. Use APIs in Deno with MailSlurp.
Developer guide
How to get starting with MailSlurp
Fetch nameserver records
Use MailSlurp to fetch name server records. These are useful for verifying domains and querying mail servers.
Email for testing (test email accounts)
Use dummy test email accounts to test email end-to-end.
Email size limits
Email size limits We use emails for most of our day-to-day communications. While using emails, you should keep in mind …
Code examples
See MailSlurp in action with code examples or interactive demo app.
Expired inboxes
Manage payment, access, and usage limits.
Fetching emails in code
Fetching email content Some email receiving methods return lists of email previews. This is to keep response sizes low. …
Form submit emails
Submit forms directly to email. No code or sign-up required.
IMAP vs POP3 in SMTP
IMAP vs POP3 in SMTP There are multiple technologies associated with the retrieval of emails to your email inbox. It …
MailSlurp SMTP POP3 IMAP Ports
How to test SMTP, POP3, and IMAP inboxes using MailSlurp.
Mailto link use in HTML
Mailto link use in HTML HTML is the most prominent technology used behind emails. If you want to become an expert in …
NBSP HTML Entities
NBSP HTML Entities All emails that you send out are formatted through HTML. This is why you should have a strong …
PHP Mail Tutorial (3 ways to send emails)
How to send and receive emails in PHP
Query IP addresses
Free IP Address API. Query IP address for domains and urls.
Receive emails in code and tests
Read email in code or tests For full documentation please see the receiving email guide.
Receive emails with email API using Wait For methods
Fetch emails and attachments in code waiting for new emails to arrive using MailSlurp
Receiving Email
How to receive emails in application, tests, or the MailSlurp dashboard.
Reset API Key
How to refresh your account API Key
Secure Email
How MailSlurp secures your emails and what security features are available.
Sending Emails with MailSlurp
How to send emails using the Dashboard, API, or SDK clients.
Sending limits and reputation
How to manage sending limits and spam detection
SMTP vs HTTP MailSlurp inboxes
The difference between HTTP and SMTP inboxes and domains in MailSlurp.
Spam email and virus detection
Analyse emails for vulnerabilities and viruses. Get DMARC, SPF, and DKIM verdicts for emails with MailSlurp.
Testing email with Cypress
Test email accounts for CypressJS. End-to-end testing with real email addresses using MailSlurp Cypress plugin.
Testing User Sign-Up and Email Confirmation
A tutorial on testing email dependant actions using MailSlurp test email accounts. Intercept inbound emails in tests and …
User Sign-Up Playground
Use MailSlurp's Playground to test ideas or integrations with a real user sign-up, verification, and login process.
Wait for email API
Wait for email API MailSlurp has many functions for receiving emails. One popular method is the WaitForController wait …
What are DKIM records
What are DKIM records We all receive dozens of spam emails to our spam boxes daily. These spam emails are usually sent …
What are SMTP ports
What are SMTP ports SMTP is the protocol that you use when sending out emails. As you continue to use this protocol, you …
What is an SMTP server
What is an SMTP server Sending an email to someone is something that you can do within few seconds. This is one of the …
Related
Office Puppy
Office Puppy Behold the MailSlurp office puppy Wusi. She is a chihuahau/mini-pinscher mix and she keeps everyone …
The Recommended Email size
The Recommended Email size Do you know what the email attachment size limit is to the content you put in your email? …
The Difference between POP3 Vs. IMAP Emails
The Difference between POP3 Vs. IMAP Emails When it comes to retrieving email messages, you have to do it right. To …
SMTP Port Guide
SMTP Port Guide Everyone wants a successful delivery of their email. What stands between desire and real success is the …
What is an SMTP Server?
What is an SMTP Server? If you ask anyone whether they can send an email, a good percentage of them will answer in the …
NBSP in HTML emails
NBSP in HTML emails Of the easiest thing to use on the keyboard, it is the space bar. You can even do it while your eyes …
Email for testing
Email for testing One of the laborious things in QA professional life is testing email workflow. It involves a lot of …
CC and BCC in SMTP
CC and BCC in SMTP Numerous questions arise from people asking, what is Bcc in email, and how does it work? They also …
How to use Mailto Links
Tutorial mailto links in HTML emails
Avoiding Spam Filters
Avoiding Spam Filters When sending emails for marketing, no one wants their emails to go to the spam folder. The target …