Post by jabom on Dec 28, 2023 4:19:05 GMT
Up MTA-STS for your domain you can follow the steps shown below: Check if your domain has existing MTA-STS configurations. If you are using Google Workspace for your emails you can do so easily with the help of this guide. Create and publish an MTA-STS policy, configured separately for each domain. The MTA-STS policy file defines MTA-STS-enabled email servers used by that domain. Upon creating your policy file, you must upload this file to a public web server which can be easily accessed by remote servers.
Finally create and publish your MTA-STS Job Function Email List DNS record (“_mta-sts” TXT record) to instruct receiving servers that your emails must be TLS-encrypted to be considered authentic, and should only be allowed access to your receiver’s inbox if the former is true Once you have an active policy file, external mail servers will not allow access to email without a secure connection. MTA-STS Policy Modes: None, Testing and Enforce The three available values for MTA-STS policy modes are as follows.
None your MTA-STS configuration as external servers will consider the protocol inactive for the domain Testing: While on this policy, emails transferred over an unencrypted connection will not be rejected, instead, with TLS-RPT enabled you will continue to receive TLS reports on the delivery path and email behavior Enforce: Finally, when on enforce policy emails transferred over an unencrypted SMTP connection will be rejected by your server. MTA-STS offers protection against : Downgrade attacks Man-In-The-Middle attacks.
Finally create and publish your MTA-STS Job Function Email List DNS record (“_mta-sts” TXT record) to instruct receiving servers that your emails must be TLS-encrypted to be considered authentic, and should only be allowed access to your receiver’s inbox if the former is true Once you have an active policy file, external mail servers will not allow access to email without a secure connection. MTA-STS Policy Modes: None, Testing and Enforce The three available values for MTA-STS policy modes are as follows.
None your MTA-STS configuration as external servers will consider the protocol inactive for the domain Testing: While on this policy, emails transferred over an unencrypted connection will not be rejected, instead, with TLS-RPT enabled you will continue to receive TLS reports on the delivery path and email behavior Enforce: Finally, when on enforce policy emails transferred over an unencrypted SMTP connection will be rejected by your server. MTA-STS offers protection against : Downgrade attacks Man-In-The-Middle attacks.