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MAILCONSMTP - Outgoing Email Rejected by SMTP Server

Error CodeMAILCONSMTP
Error MessageOutgoing email was rejected by the SMTP server. Please check the sender address and all settings.
SeverityMedium
AffectsOutgoing Email Servers

Symptoms​

  • The connection to the SMTP server succeeds, but outgoing emails fail to send.
  • The error indicates the message itself was rejected, not the connection.

Root Cause​

  • The SMTP server connected successfully but rejected the outgoing message.
  • The sender email address isn't authorized to send through this SMTP server.

Resolution​

  1. Verify the email address configured on the outgoing server is valid and active.
  2. Contact your IT or mail administrator to confirm ServiceOps is authorized to send emails through this SMTP server.
Related FAQs

See Email Server FAQs for: "Why are all outgoing emails failing with a connection error?" and "Why does the outgoing server fail with 'configuration is not proper or recipients list is empty'?"