How to fix SMTP error 530

Problem

When you send an email, the following error can occur:

SMTP Error 530: Authentication is required

Symptom

• You can receive emails, but cannot send.
• You can send emails using Web Mail.

Cause

• Email authentication is not enabled in your mail client.
• Your ISP is blocking access to your Ecenica SMTP service.

Resolution

• Check your mail settings are correct. See How-to check your incoming and outgoing settings.
• Enable email authentication in your mail client. See How-to enable SMTP Authentication.
• Change your sending port. See How to change SMTP port number.