Advanced Settings

Advanced Settings section consists of three subsections: General, Security, and DKIM-signature.

General
Security
DKIM-signature

Configured in section Mail Relay -> Advanced Settings -> DKIM-signature. Signs correspondence originating from the server with a signature unique to your mail domain so that other mail servers on the Internet can verify that your mail is legitimate and trustworthy.

For the technology to function, you will need to create a TXT record for your domain from the zone holder with a value that our server will generate for your mail domain. TXT records will be generated for the main mail domain configured for SafeUTM and additional mail domains (if specified). The server will also check whether the entry for your zone was specified correctly and whether it resolves to the Internet.

The volume of a TXT record is quite large and many registrars/zone holders have difficulty providing an interface to clients to specify TXT records longer than 256 characters. They often provide the possibility to specify TXT records up to 256 characters long in accordance with the RFC1035 standard. However, another standard, RFC4408, suggests combining strings in cases where you need to use long TXT records when configuring SPF and DKIM. Use this information in a dialogue with your domain zone holder. As a rule, zone holders find a way to create long TXT records.

The signature contains a combination of quotation marks (quote-space-quote: " ").
If your hosting does not accept this recording format, then delete these characters.


Revision #6
Created 27 August 2022 18:56:29 by Val Redman
Updated 13 October 2022 16:02:56 by Val Redman