Failed to send mail to user@domain.com: Domain contains illegal character

Knowledge Article

Article Number

000260964

Old Article Number

000132101

Article Type

Solutions to a Product Problem

Title

Failed to send mail to user@domain.com: Domain contains illegal character

Summary

Control-M is failing to send email and errors with "Domain contains illegal character".

Product

Control-M/Server for UNIX and Microsoft Windows

Component

Control-M/Server for UNIX and Microsoft Windows

Applies to

Control-M/Server for UNIX and Microsoft Windows 9.0.00 fix pack 3

Problem

Control-M fails to send email.
Checking the U_CTMMAIL#####.#####.log in the Control-M's proclog directory shows an error of the following format:
Failed to send mail to user@domain.com: Domain contains illegal character

Cause

The domain is incorrect in the recipient or sender.

Solution

Make sure the recipient's email address and a proper domain address.

Also check the Control-M Server's data/config.dat and check for any invalid characters in the domain there.

# SMTP communication parameters
SMTP_PORT_NUMBER 25
SMTP_SERVER_NAME
SMTP_SENDER_EMAIL CONTROL@M
SMTP_SENDER_FRIENDLY_NAME
SMTP_REPLY_TO_EMAIL

For example an underscore _ is not valid in the domain name.

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