Customer Advisory: API Keys (API + SMTP) and 2FA Required for all customers Wednesday, March 24th, 2021

Sendgrid Outgoing Mail Gateway Original incident notification from SendGrid
These maintenances affect outgoing email on the Zenith Media Canada Network of servers, all outgoing email unless configured by the client to do otherwise rely on the smart host gateway of SendGrid.

Mar 24, 09:00 PDT
Completed - The scheduled maintenance has been completed.

Mar 16, 15:23 PDT
Update - Scheduled maintenance is still in progress. We will provide updates as necessary.

Mar 16, 15:00 PDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Mar 16, 14:59 PDT
Scheduled - In order to enhance security for all of our customers, Twilio SendGrid is requiring existing customers to update their authentication to API Keys for all API and SMTP requests by Wednesday, March 24th, 2021.

This is an informational customer advisory that will impact a subset of customers. Customers impacted by this breaking change will experience authentication errors when making API calls leveraging Basic Username and Password Authentication. In order to ensure uninterrupted service, customers must update their authentication method to API keys by following the steps here:

Twilio SendGrid has conducted an outreach campaign targeting the registered account email addresses of all customers affected by this breaking change. We are taking the additional step of including this alert here to ensure the best possible alerting to our customers.

If you have any questions or need assistance please visit our documentation ( or reach out to our support team (

Interested in using SendGrid as your outgoing email strategy? Take advantage of our Cloud Website Hosting and our WordPress Website Hosting that are already fully integrated and configured to send using their global network. Interested in cPanel Anti-Spam Email Protection? if you're an Email administrator, that solution is for you.

Have an issue thats being affected by this maintenance? Open a Ticket and we can help you find a solution.

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