Yes. Clusters have extensive support for replying and posting by using your email client. Somebody replied to your message or someone mentioned you and you’ve got notification in your email app on your mobile phone? You can just reply back right there and it goes to forum.
To get notified in email about new posts, set a notification mode by clicking a bell icon on the category.
Some categories also support creating new posts by sending email messages. You will find the email address of such category in category description - it will be in the form of
clusters+something@servus.at
Subject of the email will become new topic name and email body will be your post.
Some categories, like LOOP are mirroring mailing list. You will see mailinglist messages as topics and replies in this category. If you are writing in mailinglist and do not yet have Clusters registration, after you register with an invite, your email messages are linked to you by the email address you used.