Article ID: 130423, created on Mar 14, 2017, last review on Mar 14, 2017

DomainKeys support in H-Sphere has certain limitations.

Outgoing messages are signed with Domain Keys only if:

  1. The mailbox in question has DomainKeys check enabled;
  2. skipcachk/skipsachk are set to "Default settings".

Even if those conditions are met, e-mails that are send out by sendmail program that is used in Horde by default will not be signed. Please use SMTP server to send signed e-mails.

To check what program is used by Horde and how to switch to external SMTP server please check the H-Sphere System Administrator Guide chapter Setting SMTP Server for IMP.

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