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Email Settings

Atollon Mail operates as an independent email server. There are two basic ways to configure email reception in Atollon:

Atollon as the Primary Email Server

This option is the default system setting, where all email communication is directed to Atollon servers.

Domain Settings at the Registrar

The customer must configure their domain's MX records to point to Atollon servers. Add the following MX records to your domain's DNS:

1 10 mx1.atollon.com
Domain settings in the system

Into the system, enter a second-level domain (e.g., company.com), under which individual email accounts will be created.

Sending messages

The sender's identity is the same as the specific email account, e.g., mailbox@company.com.

Nastavení SPF

It is necessary to add the following TXT record to the DNS records of the domain "company.com":

1 v=spf1 mx include: spf.atollon.com -all

If you also send emails from other servers, they must be included in the SPF rules as well.

Example of what the record might look like when using multiple mail providers:

1 v=spf1 mx include: spf.google.com include:_spf.mailprovider.sk include:spf.atollon.com -all

Atollon as a secondary email server

This option is suitable if Atollon is intended to serve purely as a mail archiving tool (not as the primary email server), or if the goal is for Atollon to manage only a specific portion of the email communication (selected mailboxes).

Domain settings in the system

Into the system, you enter the settings for a third-level email domain (e.g., INSTANCENAME.atollon.com), for which only selected email mailboxes are created. On the primary email server (at the current email service provider), email forwarding is then set up for individual mailboxes from mailbox@company.com to mailbox@company.atollon.com.

Sending messages

After creating the mailboxes, it is advisable to change the sender's identity within the Atollon system. Instead of mailbox@company.atollon.com, it is recommended to set it to mailbox@company.com. For this to function correctly, the DNS records for the domain "company.com" must be updated—specifically, the SPF rule must be supplemented—see below.

SPF Settings

Just as when using Atollon as your primary email server, you must add the following TXT record to the DNS records of the "company.com" domain:

Just as when using Atollon as your primary email server, you must add the following TXT record to the DNS records of the "company.com" domain:

1 v=spf1 mx include:spf.atollon.com -all

If you also send mail from other servers, these must also be included in the SPF rules.

Example of what the record might look like when multiple mail providers are involved:

1 v=spf1 mx include:spf.google.com include:_spf.mailprovider.sk include:spf.atollon.com -all

How to set up forwarding of your email to Atollon

Office 365 Configuration Example

In the case of using Atollon as a secondary email server while utilizing Microsoft 365, it is necessary to enable forwarding to an external email address; a link to the instructions can be found (here). In the Admin Center, select Security. Then expand the Outbound spam filter policy (always ON) menu and click the Edit policy button. Here, you need to change the setting from the default "Automatic – system-controlled" to On – forwarding is enabled and Save the changes.

Forwarding at the Email System Level

At the email system settings level, it is necessary to set up automatic forwarding (auto-forward) for each mailbox whose messages are to be delivered to Atollon – for example, from the address thomas@company.com to thomas@company.atollon.com.





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