client side spam filter
Email is the main channel for cyber attacks.
Sender address spoofing can be easily detected by email authentication information.
RealSender’s “spamstop” app shows it directly in the email subject of the messages you receive.
This also allows you to continuously check the correct email settings of your company, customers and partners.
It is an efficient anti-spam solution when combined with a filter
that splits messages according to senders that are NOT in your address book.
Topics in this area:
1 - spf check
spf-based email sender check
2 - dkim check
dkim-based sender and email seal check
3 - dmarc domain alignment
at least one of the domains must align with the sending From domain
4 - double spam tags
two SPAM tags added to the subject to highlight fraud
spam filter client side
an example of how to configure the spam filter on your email clients