Ok now I understand it. Its 2000 ā€œfromā€ addresses. However I do not understand what you are doing with all those newsletters šŸ˜‰
I would still propose to use a shared folder for this ā€œone inboxā€ and make this accessible (ā€œfreigebenā€ as I think you are german) to your internal users.
This way you have only one ruleset in place. Your ruleset above seems wrong, as it is selecting on ā€œtoā€ instead of ā€œfromā€.

You can also have a look at ā€œ+ā€ addressing, it would automatically create subfolders depending on your alias.
E.g. you have you have ā€œdomain.deā€ as your mailcow domain. You have a user with ā€œhoneypot@domain.deā€ as ā€œthe all in oneā€ mailbox.
So you can use ā€œhoneypot+adidas@domain.deā€ without any additional effort, and mailcow will automatically create a folder ā€œadidasā€ and file received mails into that folder. This can then be shared with agent1..n@domain.de.
docs.mailcow.email Icon Sub-addressing - mailcow: dockerized documentation

docs.mailcow.email Icon docs.mailcow.email
Sub-addressing - mailcow: dockerized documentation
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docs.mailcow.email

  • dsn replied to this.

    esackbauer Thanks for the answer.

    Iā€™m indeed for germany hahah, good job šŸ™‚

    Thatā€™s an incoming mail example and itā€™s ā€œto:ā€ :

    However, how would you set the rule filter as efficient as possible? Can I just do it like that?

      Sorry, now I am confused again. This is a mail from Costco to a gmail account. What has this to do with mailcow?
      are you assuming mailcow is ā€œgmail.comā€?

      • dsn replied to this.

        Ok, I still do not understand what you want to achieve here. Maybe you can put your use case together so we can better understand why you forward and then forward again. When forwarding is actually bad/old practice.

        • dsn replied to this.

          esackbauer

          Forget the forwarding please. Thatā€™s mandatory for us, we canā€™t change.

          Iā€™m just asking on how I can apply the filters the best way possible. can I do the Syntax: ā€œmail1ā€ AND ā€œmail2ā€ for example? Or is there any other syntax for this?

          Or can I somehow manage the filters differently? For example in a code or with an api?

          Do you have a suggestion for this

          Thanks already soo much for the help.

            Hi.

            Are these emails going to a single email account and then you want it forwarded to various people?

            Yes -> Using the GUI method above in SOGo will work but will be time consuming. You can instead edit the email addresses sieve filters directly through text and manipulate them that way. However, itā€™s not possible to do this via mailcows GUI. You will need to find an app that can do this. KMail on KDE has this ability.

            You -can- use mailcows GUI to create a pre-filter for emails and do this the same way, though.

            If the emails are NOT going to a single email address then you will need to make a global pre-filter to do this.

            • dsn replied to this.

              SimplyCorbett Dear Simply Corbett,

              Thanks for your help!

              What do you mean by: global pre-filter exactly?

              Also do you know an alternative to Kmail on KDE for windows where we can efficiently manage rule filters?

                  I have seen something like directly modifying the .sieve files inside the mailserver itself.

                  Is there a good way on how to do it? And does this even make sense?

                  Like with an external e-mail client or something.

                  dsn There is an option in the mailcow admin UI called ā€œglobal pre-filterā€ which is a text field you can edit.

                  As mentioned, you can also modify the users server-side sieve filters directly with a mail client such as KMail.

                  • dsn replied to this.

                      SimplyCorbett Awesome, thanks!

                      I didnā€™t know you mean sieve filters with the KMail client. Do you know a KMail alternative that works for windows as well?

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