With MTA-STS for More Security in Email Traffic

Several days ago, the BSI published a good article on the topic of email security and modern email infrastructures. https://www.allianz-fuer-cybersicherheit.de/SharedDocs/Downloads/Webs/ACS/DE/BSI-CS/BSI-CS_155.pdf This prompted me to write this article. Since the SMTP protocol was designed in the 1980s and security was not a major concern at that time, we need to continuously develop mechanisms to adapt this …