SMTP Error: 550 Unauthenticated senders not allowed

sendgrid / docs

Repository of Twilio SendGrid's product documentation.

https://sendgrid.com/docs

MIT License

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Closed chirag-glorywebs closed 3 years ago

chirag-glorywebs commented 3 years ago

Link to page:

Whatthefoxsays commented 3 years ago

Hello @chirag-glorywebs

We're sorry you're having this issue! It could be an issue with your authentication method: https://sendgrid.com/docs/for-developers/sending-email/upgrade-your-authentication-method-to-api-keys/ If this doesn't solve it for you, please access support contact options by logging into https://support.sendgrid.com.

SendGrid Docs Team