This article describes how to enable DomainKeys for Spam protection in Plesk 12 and Plesk 12.5.
DomainKeys is an e-mail authentication system designed to verify the DNS domain of an e-mail sender and the message integrity. This helps to ensure the deliverability of you email as it can be verified by remote mail servers.
- To enable DomainKeys server wide in Plesk, Allow signing outgoing mail needs first to be turned On.
Navigate to Tools & Settings > Mail Server Settings (under Mail section)
In the DomainKeys Spam Protection group select the check box Allow signing outgoing mail then Ok.
- To enable per domain subscription is located under Website & Domains > Mail settings.
Now Select the check box – Use DomainKeys spam protection system to sign outgoing email messages
- Check Website & Domains > DNS settings and the 2 similar TXT records below should have been added.
_domainkey.conetixtest.com. TXT o=- default._domainkey.conetixtest.com. TXT p=<PUBLICKEY>
You can verify that your DomainKeys configuration is working correctly by using this site: http://www.mailradar.com/domainkeys/