Contents

• Servers
• SMTP Sends Failures When Administrator Email Uses an Underscore Character
• External Server Connection Issues
• NTP-Provisioned Time out of Sync on Virtual Machines

Servers

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This section includes troubleshooting topics about your mail and storage servers.

• SMTP Sends Failures When Administrator Email Uses an Underscore Character
• External Server Connection Issues
• NTP-Provisioned Time out of Sync on Virtual Machines

SMTP Sends Failures When Administrator Email Uses an Underscore Character

Problem    A user sends an email to the administrator and the email is returned as undeliverable.

Possible Cause    Underscore characters are not supported for email addresses.

Solution    Do not use underscore characters or other unsupported characters when sending emails to the administrator.

External Server Connection Issues

Problem    Administrators and users are not receiving emails from your system.

Possible Cause    There might be a permissions issue on the storage server for the specific mount point that your system is pointing to (sign in to the Administration site and select System > Servers > Storage Server).

1. Solution    Make sure that sendmaill requests from the concerned Cisco WebEx Meetings Server are not blocked.
2. Solution    Put your system into Maintenance Mode and correct the SMTP information on admin web. Save your changes and take the system out of Maintenance Mode. When the system finishes rebooting, the status should indicate "UP."
3. Solution    Fix the SMTP server issue or specify a different SMTP server to work correctly with your system.

NTP-Provisioned Time out of Sync on Virtual Machines

Problem    An NTP alert is displayed at the top of the page shortly after the user logs in. The NTP provisioned times on each virtual machine are out of sync by three or more minutes.

Possible Cause    The NTP provisioned times on each virtual machine are out of sync by three or more minutes.

1. Solution    Wait to see if the message is cleared after times are synced.
2. Solution    Confirm that all the virtual machines are using the same NTP host. Consult your vSphere documentation.