The operations to be carried out
- Modify the Internet DNS MX entries for your organisation's domain so that incoming Internet messages are processed by the Email Filtering Service
- Add the SPF record to your DNS server to prevent spoofing of your mail servers.
- Optionally, limit connections to your email server so that emails received and sent by your organisation can only pass through the Email Filtering Service.
MX records
Important and essential points for the proper use of our services:
In order for your mail stream to be processed by our filtering service, the MX fields in the DNS zone of your domain name must be redirected to our filtering servers which are :
- france.security-mail.net (weight 10)
- europe.security-mail.net (weight 20)
As soon as the DNS change is made, your protection will be active.
Adding the SPF record
The SPF record is a line that you should add to your DNS server to prevent spoofing of your mail servers. This reduces the risk of your domain being used for SPAM.
Here is the information you need to add to your registrar (Gandi, 1&1, OVH ...) in order to create the TXT field of the domain "your-name-domain.com
your-domain-name.com is a domain name that we will use as an example.
Your-name-domain.com 10800 IN TXT "v=spf1 include:includespf.security-mail.net ~all"
Limiting connections to your mail server :
In order to ensure that you only receive secure messages, we recommend that you limit the arrival of emails from the Email Filtering Service servers. This will further secure your mail server by making it invisible to the outside world.
You can implement this limitation in your corporate firewall by setting up security rules that only allow the Email Filtering Service servers to correspond with your SMTP server.
|