Inbox not receiving emails

How to fix common issues when inboxes do not receive emails you send to them.

The issue

You have created an inbox in the MailSlurp dashboard or using the API. When you send an email to the inbox’s email address the email is not received.

Missed email

Potential fixes

If you encounter issues with receiving emails using a MailSlurp email address or inbox please follow the steps shown below to diagnose the issue. If theses steps do not fix your issue please contact support.

1) Check that the email matches

Inbox email addresses are case sensitive and must match exactly. This means you cannot send emails to an inbox email address by including suffixes or mixing capital and lowercase letters. If the inbox email address is abc@mailslurp.xyz you cannot receive emails using abc+test@mailslurp.xyz or ABC@mailslurp.xyz. You must send emails to the exact email address shown.

2) Use the correct inbox type

MailSlurp supports two types of inbox: SMTP and HTTP. Despite the name, both use the SMTP protocol but each is handled differently by MailSlurp.

  • HTTP recommended for most cases
  • SMTP receive-only inbox that uses a custom mail server for legacy clients

If your inbox is not receiving emails it may be an HTTP inbox that doesn’t support your client. Please create an SMTP inbox and test again with the same sender. If you use an SMTP mailbox you can also check the status of the mail server to ensure there are no issues.

inbox types

3) Try refreshing or using a longer timeout

Sometimes emails can take up to a minute to be processed by MailSlurp. If you are viewing emails in the dashboard please first try refreshing the email view page and waiting at least a minute for an email to arrive. If you use code or the API please provide a timeout property to ensure the that MailSlurp waits for your email to arrive.

4) Check your plan receive limits

View the main page of the MailSlurp dashboard to see your account usage and plan type. The monthly receives statistic shows how many emails you have received this month over how many in total you can receive per month.

usage

You can also see usage over the months in the chart below.

usage

Upgrade your account for more usage if necessary.

usage

5) Send a test email using the dashboard

Navigate to the inbox in question inside the MailSlurp dashboard and click the send test button highlighted below. This will send an email to your inbox using the MailSlurp API. Refresh the inbox email view to see your email.

test sending

If this works but other sending methods do not try adjusting the type of inbox you are using or contact support.

Further steps

If these steps do not resolve your issue please contact support!

Contact support

If your inboxes are not receiving emails you send them please contact support using the help desk. Please provide the email addresses or inbox IDs that are causing you problems and describe how you sent emails to them. We will do everything we can to help.