You can create an email filter via Webmail. All you need to do is access your Webmail account. Once that's done click on the gear icon in the upper right corner and select Preferences:

There you will be able to choose your desired email account and once that's decided, click on Rules:

And select Create a new rule:

Then specify its conditions, set up actions, and click on Create rule:

All of your already created rules will be shown in the same Rules section. From there you will be able to either edit it or delete it completely:

That's it! Now you know how to create and manage rules for Titan Email 😊