When you host your email on the Exchange Online (EXO) platform part
of Office365 you can implement several security measures to make sure that
email send from your domain gets delivered to the mailbox of the recipient.
The most known solution for this is by implementing a Sender Policy
Framework (SPF) DNS record. By creating a SPF DNS record in your DNS you
provide receiving email servers the option to check if the originating IP of
the email is also the authorized email server for the domain. If not the email
can be considered suspicious and the email system from that point forward can
decide to threat the email as spam, phishing and so forth.
If you decide to make the nameservers of Microsoft authoritative,
which allows you to manage your DNS settings from the Office administration
portal, the SPF record needed can automatically be enabled for you.
One of the
disadvantages of being an experienced consultant in IT is the fact that once in
a while you need to re-learn. With re-learn I mean that for some concepts it’s
easier to understand how it works if you come from no-experience. I’ve
experienced this with quite some Microsoft products as well. If you know the
old version, switching to concepts in a new version might not be that easy
compared to when you get to know the new version without any prior knowledge.
I also experienced
this “challenge” lately when trying to figure out when to assign
applications or configuration to either User Groups or Device Groups.
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