Previously I showed you how to set up SPF and DKIM on CentOS/RHEL mail server. Two common pieces of software that can do DKIM signing and verification on Linux are OpenDKIM and Amavis. In that tutorial I used Amavis, because at the time OpenDKIM isn’t included in any CentOS 8/RHEL 8 repository. As of now,…
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Install and Configure OpenDKIM on CentOS 8/RHEL 8 Mail Server
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