Experience with security systems and email providers

Safety systems 

Here is a listing of the security systems we have verified as whitelisted.

 

Security Systems IP Wildcard Domains Header

Microsoft Defender 365

x   x x
HornetSecurity       x

MDaemon

x      

SecurityGateway von MDaemon

x      

Kerio

x      
Proofpoint Essential x      

E-mail provider

 

Anbieter IP  Wildcard Domains Header Kommentar
Strato   x     *@*de-dar.com must be set up for each mailbox
1&1   x     @.de-dar.com works with a little wait


Legend:
IP: IP address (e.g. 1.1.1.1)
Wildcard: Placeholder (e.g. *)
Domains: Web sites (e.g. www.lt-seal-index-de.de)
Header: Email header (e.g. f950575f2a56d00d9bda8f4dd9ecdadcdf12e763e773a532ce4e6fc)