Hi there, can anybody please tell me how to block spam mail senders?
Thanks a lot in advance: Hotte
Welcome to the community.
As far as I know, there is no way to filter spam within thie stock email app (K9 fork).
Depending on the email provider you use there are several methods available in your email webinterface (Hetzner e.g. is using sieve) to filter spam.
The best way is do do this on the mail server. This is normally done by moving received SPAM into the SMAP folder. The server sees this in background and builds his own rules on this.
But this has conditions: the server must be an IMAP server for this, otherwise moving mails into folders is not possible (on the server). The server must support the concept of SPAM recognition (most servers do). And the client app must also support moving.
The stock app allows moving, also into the SPAM folder. When you received a message and you find it’s SPAM you can tap and hold the finger on it for a second, so the message gets a mark. And then you can go into the three-dots-menu in the upper right corner and chose SPAM. You do not need to read this message for this.
Hallo Irrlicht, danke für diese Tipps! Ich habe wohl schon Nachrichten in den Spamordner verschoben, bekomme aber trotzdem weiterhin Nachrichten von denselben Absendern. Die Mails kommen immer an meine murena-Adresse. Deren Server kann dann offenbar aus dem Verschieben in den Spamordner nicht lernen. Entschuldige bitte meine laienhafte Ausdrucksweise. Ich bin IT-technisch nicht so versiert. 
Gruß, Hotte
Es dauert eine Weile bis so ein Server lernt. Das hängt mit bestimmten Zyklen zusammen. Es kann Stunden oder sogar Tage dauern, bis er Deinen SPAM-Ordner überhaupt anschaut. Das Ergebnis hängt vor allem davon ab, wie oft SPAM aus einer Quelle kommt, Du musst diese Verschiebeoperation also immer wieder machen, damit der Server das begreift und auch gemeinsame Merkmale an diesen Nachrichten erkennen kann.
Wenn es sich um einen konkreten SPAMer handelt, der leicht erkennbar ist, dann kannst Du auch selber ein einfaches Filter aufsetzen. In der ecloud (d.h. in deren Webinterface, nicht in der Mail app) kannst Du für eingehende Nachrichten einen Filter definieren und festlegen, was damit gemacht werden soll:
You can check out a guide which mentions on how to enable or disable spam mail filters.
Hallo Irrlicht,
ich danke nochmals.
Manojs Tipp hat mir geholfen. Ich hatte “rainloop” schon mal gefunden - nur dieses Mal eben nicht - und bei der Eingabe der Bedingungen wohl etwas falsch gemacht. Hoffentlich klappt es diesmal.
LG Hotte
The Murena email is different from the mail server? How is it different? If I am using an address with @murena.io isn’t Murena my mail server?
Read again what I wrote.
I said the best way to block SPAM is to do it on the mail server. The mail server is something different from the mail client. The mail client is your mail app.
The advantage of involving the mail server is that all the crap is already recognized on the mail server and will not be pumped onto the mail client, so you have much less senseless network traffic and energy consumption on your device. The second big advantage is that you can use several mail clients simultaneously, and that is something many people do (PC, tablet, mobile, second PC for business, …)
Yes. And now?
Thanks. I understand what you’re saying and it makes sense, but most importantly, I don’t know how I can block spam on the mail server. I don’t think I have control over it– or do I? Thanks for any tips.
I also don’t really know how to geht to the Server (IMAP), but I now think following what Manon wrote, step by step, every one, die the job.
I said also this. When you use the stock Mail app to mark received messages as SPAM the server will be noticed about this and will adapt it’s rules (so the theory). This takes a while and requires your personal cooperation, you must mark crap messages as SPAM, again and again, just deleting them is something else.
When you use another mail client it depends on its code. Most modern mail clients will also do well.
If you’re not successful with this (this means: if the server doesn’t learn enough) you can build your own specific filtering rules using the web interface of your Murena account. The filters you construct there are executed whenever the server (!) receives a message, this is before the message or any notification reaches your mail client(s). The problem is to specify sophisticated and reliable filter critera, this can indeed be a challenge.
The web interface of your Murena account provides a filter construction dialog in the account settings, I gave a screenshot above (OK, in German language). In the next post Manoj gave an additional link.