Holmes Security Coach – Sender

Sender checks

This page will give explanation about the executed checks by the Holmes Security Coach regarding the sender elements of an e-mail. Every check is further explained by the meaning of the result and how to be interpreted.

  • Probably safe

    There are no guaranties but based on our checks the e-mail seems to be reliable. Are you doubting the authenticity of this e-mail? Please report the message using the Life Line. You will receive feedback automatically.

  • Watch out!

    We have detected signals that you might be dealing with phishing, but we cannot be sure. Are you doubting the authenticity of this message, use the Life Line in the Holmes Security Coach to report the e-mail.

  • Potential threat!

    It is very likely that you are dealing with phishing. Report the received e-mail with the Life Line. When your system administrator recognizes the e-mail as phishing too, the e-mail will be blocked for your colleagues.

Known sender

The known sender check investigates if the e-mail address of the sender is already existing in your inbox. Spam and phishing are often sent from an unknown e-mail address. Specially when the e-mail contains hyperlinks or attachments, it is necessary to be aware.

 

Known sender is Red, what does this mean?
The sender is unknown within your inbox and there are hyperlinks and/or attachments in the e-mail. We recommend you to use the Life Line.

 

Known sender is Orange, what does this mean?
The sender is unknown within your inbox. If there are more checks that are red or orange, We recommend you to use the Life Line.

 

Known sender is Green, what does this mean?
The sender is a known sender in your inbox. This check is passed but be aware of the other checks.

Domain reputation

The domain is the part of an e-mail address what belongs to an organization or a person, the organization or person owns the domain. As an example: the domain google.nl is owned by the company Google. The domain and who owns it says something about the reliability and this is translated to a domain reputation score. The higher the reputation, the more reliable the domain is.

 

Domain reputation is Red, what does this mean?
The domain has no or a low reputation and is therefore less reliable. We recommend you to use the Life Line.

 

Domain reputation is Orange, what does this mean?
The domain has a low reputation and is therefore less reliable. Are there more checks red or orange? We recommend you to use the Life Line.

 

Domain reputation is Green, what does this mean?
The domain has a high reputation and is therefore more reliable. This check is passed but be aware of the other checks.

Holmes Community

The Holmes Community Blacklist is a list of potential malicious e-mail addresses detected and selected by Holmes users and administrators. As soon as the community determines an e-mail address is potentially malicious, this e-mail address will be added to the blacklist. This way, you as a Holmes user, you have the complete community at your disposal.

 

Holmes Community is Red, what does this mean?
The e-mail address is on the Holmes Community Blacklist and is therefore potentially malicious. We recommend you to use the Life Line.

 

Holmes Community is Orange, what does this mean?
The e-mail address is not (yet) on the Holmes Community Blacklist. Be aware because it can be an unknown e-mail address, but it does not mean it is safe. Are there more checks red or orange? We recommend you to use the Life Line.