September 23, 2020 | 12:40
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Regarding Mailservers

Today I’ve recieved a Email with following Headers:

Arc-Authentication-Results: i=1; 1; spf=none; dmarc=none; dkim=none; arc=none
Erhalten: from

May I ask openly what this “protection” server does in the absence of common spam and security features?

There are numerous tools in the web for (self-)checking. I usually provide this link and try to lead by example before going into further details like IP-Stripping, pentests or security:

With this in mind,
stay healthy!

Tomas Jakobs

Mailserver Online-Schnelltest

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