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DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid - Help with Setup/Upgrade - Mail-in-a-Box Forum
![SOLVED] Setting correct SMTP HELO host, domain name, PTR records for e-mail server - Support - NethServer Community SOLVED] Setting correct SMTP HELO host, domain name, PTR records for e-mail server - Support - NethServer Community](https://community.nethserver.org/uploads/db8506/original/3X/3/1/317b75ce63ede8218e3d4e87d35e9021c2b28091.png)
SOLVED] Setting correct SMTP HELO host, domain name, PTR records for e-mail server - Support - NethServer Community
![KB5956] Configure Approved (whitelist), Blocked (blacklist) and Ignored (exceptions) lists in ESET Mail Security for Microsoft Exchange (8.x - 9.x) KB5956] Configure Approved (whitelist), Blocked (blacklist) and Ignored (exceptions) lists in ESET Mail Security for Microsoft Exchange (8.x - 9.x)](https://support.eset.com/storage/IMAGES/en/KB5956/KB5956Fig1-1g.png)
KB5956] Configure Approved (whitelist), Blocked (blacklist) and Ignored (exceptions) lists in ESET Mail Security for Microsoft Exchange (8.x - 9.x)
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