Unable to send mail via Horde

Created:

2016-11-16 13:04:26 UTC

Modified:

2017-04-24 11:58:35 UTC

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Unable to send mail via Horde

Applicable to:

  • Plesk 11.0 for Windows

Symptoms

Unable to send mail via Horde. The following error on webpage:

There was an error sending your message: Failed to set sender: mail@dom.com [SMTP: Failed to write to socket: not connected (code: -1, response: )]

Cause

  • Mail ports are not opened in firewall
  • Mail Enable improperly configured

Resolution

  1. Make sure to open ports 25, 110 and 143 TCP in Wiindoes firewall
  2. Set Inbound IP bindings at MailEnable - Servers - localhost - Connections - smtp - Properties - Inbound to Always bind the service to all availalbe IP addresses and restarted Mail server to implement changes.
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