But email security implementation goes far beyond an email service's default security features. Spam protection and antivirus scanning are only two mechanisms of email security. Here are a few other important ones to note.
This is an email authentication method that specifies the mail servers authorized to send an email for your domain. SPF helps protect your domain from spoofing. Furthermore, it helps ensure that messages are delivered as intended. Mail servers that get mail from your domain use SPF to verify that they actually are from yourdomain.
In case you didn't know, spoofing is when spammers forge your domain/organization to send fake messages that appear to come from your company. Spoofed messages can be used for malicious purposes. For example, spoofing can prompt communication of false information, harmful software to unsuspecting users, or to trick people into giving out sensitive information. SPF helps receiving servers verify that mail sent from your domain is actually from your organization and is sent by a mail server authorized by you.
Additionally, SPF helps prevent messages from your domain from being delivered to spam. It is not uncommon to see legitimate emails get tagged as spam by email service providers. It becomes even more problematic if its an official email. If your domain does not use SPF, receiving mail servers can't verify that messages appearing to be from your domain actually are from you. Receiving servers might send valid messages to recipient's spam folders or might reject valid messages.
This standard allows for a company to take responsibility emails in transit. DKIM helps validate a domain name identity that is associated with a message via cryptographic authentication. As the official documentation states, "DKIM attaches a new domain name identifier to a message and uses cryptographic techniques to validate authorization for its presence. The identifier is independent of any other identifier in the message, such in the author's From field."
Simply put, would help curb spoofing of outgoing emails from your domain. DKIM adds an encrypted signature to the header of all outgoing messages. Email servers that get signed messages use DKIM to decrypt the message header and verify the message was not changed after it was sent.
DMARC helps email senders and receivers verify incoming messages by authenticating the sender's domain. DMARC also defines the action to take on suspicious incoming messages.
There are two points topass the DMARC check. First, incoming messages must be authenticated by SPF and/or DKIM. Therefore, users would need to set up SPF and DKIM prior to focusing on DMARC since DMARC checks are triggered when messages do not go through SPF or DKIM. Afterwards, the authenticated domain must align with the domain in the message From header address.
In case you're curious, you can check here for more details on DMARC.
As a Google Partner C-YBER recommends using GSuite for Email as it is equipped with some of the best Email Security features available. GSuite for Email offers crucial security features such as the ones specified above. Furthermore, Google's machine learning models would help keep many of the spam, phishing, and malware away from users. Some of it's other notable features include,
Data loss protection for Gmail
S/MIME encryption: You can Add S/MIME signatures for all outbound emails for additional security
Having said that, having GSuite for Email is not an absolute must (although we recommend it). Additionally, C-YBER can also implement email security for any other email service providers as well. So what are you waiting for, get in touch with us today!