SMTP Error: Data Not Accepted

What causes this error and solutions

SuprSend provides APIs and components for you to create notification workflows that drive collaboration & actions from your users - ensuring higher product adoption.

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This error message signifies that the email server rejected your message due to a mismatch between the "From" email address and the SMTP username (phpmailer, jenkins).

What Triggers This Error?

This issue commonly arises when using third-party plugins that send emails with their default email addresses, which often differ from the actual SMTP username.

Resolving the "SMTP Error: Data Not Accepted"

To fix this error, ensure that the "From" email address in your email message matches the username you're using for SMTP authentication (phpmailer, jenkins). While some default settings might not enforce this alignment, you can often configure the system to force the "From" address to match the SMTP username.

Say Goodbye to all SMTP Errors in Development

SuprSend eliminates the need to build and configure email servers from scratch, ensuring you steer clear of SMTP errors. Here's how SuprSend would work for your application, building a reliable notification system.
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Written by:
Sanjeev Kumar
Engineering, SuprSend

Say Goodbye to all SMTP Errors in Development

SuprSend eliminates the need to build and configure email servers from scratch, ensuring you steer clear of SMTP errors. Here's how SuprSend would work for your application, building a reliable notification system.
Dashboard mockup

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