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Error from Sendgrid: write ECONNRESET

Understand this error and avoid it going forward.

V
Written by Victor Fteha
Updated over a month ago

Root Cause of "write ECONNRESET" Error

The "write ECONNRESET" error typically occurs when:

  1. Connection is forcibly closed by the server - The SMTP server (SendGrid) terminates the connection unexpectedly, often when sending multiple emails in bulk GitHubGitHub

  2. Connection pooling limits exceeded - SendGrid allows only 100 messages per SMTP connection, and exceeding this limit can cause connection resets Sendgrid - per connection limit 路 Issue #475 路 nodemailer/nodemailer

  3. Network issues or timeouts - Transient network problems, firewall configurations, or temporary SMTP server issues can trigger connection resets How to Troubleshoot Nodemailer Email Sending Failures

  4. Bulk email sending without proper configuration - When sending large volumes (500+ emails) without appropriate connection management, the server may drop connections ECONNRESET 路 Issue #537 路 nodemailer/nodemailer

Please wait for 2-3 minutes and then resubmit - it should work.

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