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Blog : E-mail

Apache SpamAssassin scoring explained

19/06/2020

What is Apache SpamAssassin™? Apache SpamAssassin is the open-source anti-spam software used by most Linux based email systems to filter and block unsolicited emails. It is a complex system that is now maintained by the Apache Software Foundation. Apache SpamAssassin is modular and allows for the use of custom tests and score adjustment. How does […]

DNS E-mail

Extended DNS Records – SPF, DKIM and DMARC

15/04/2018

Most of us who have hosted or registered a domain, are familiar with the regular DNS record entries. The A, MX, NS and CNAME records are used on a daily basis and are familiar to most Systems Administrators. SOA records, while a bit less familiar, are also present in every DNS zone as they define the […]

E-mail Security

Preventing E-Mail fraud….

30/01/2018

Email has become the normal communication corridor for most business. As a result, it has been targeted more and more by fraudsters. We are not talking mail scammers here or junk mail. No – we are talking about full-blown mail fraud involving big sums of money. The problem is that we tend to trust email […]

E-mail

The battle against spam (an internal perspective)

23/01/2018

A quick history of Spam…the 70’s In the early days of the internet, email was a safe and trusted messaging system. Sending an email to someone you did not know or have business with was almost unheard of. Email protocols were developed in a trusting environment and very little was written into the protocol as […]

E-mail

Testing EMail Protocols from the command line

30/10/2017

Introduction and tools you will need to test email protocols Have you ever wondered what sort of conversation occurs between mail servers? Here is a guide on MTA-Speak and how to see if your mail server is actually working or not, ordered by email protocols. You will need a telnet client installed to run these tests and some form […]

E-mail

POP3 or IMAP for my email ?

09/09/2017

Setting up your email is often a quick rush “to get it working”. Taking a moment to decide which protocol can save you a lot of headache down the line. What do the available mail protocols mean ? What is the implication of each and why choose a specific one ? POP3 – What is it […]

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Apache SpamAssassin scoring explained

Extended DNS Records – SPF, DKIM and DMARC

Preventing E-Mail fraud….

The battle against spam (an internal perspective)

Testing EMail Protocols from the command line

POP3 or IMAP for my email ?

we're happy to help!

Call us on +27 21 554 3096

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