SPF configuration

[Patrik]

Hi at all,

I get a lot of spoofed spam e-mails from my own domain.
So I want to activate SPF.
I check the options in the Mail Gateway and create an DNS entry as follows:

myDomain.at. IN TXT "v=spf1 mx a ip4:xxx.xxx.xxx.xxx a:mail.myDomain.at ~all"

Is the configuration right or do I misunderstand anything wrong because it do not work?

best regards
Patrik

 

[tom]

Configure "Configuration/Spam Detector/Backscatter" on your Proxmox Mail Gateway.

 

[Patrik]

Ok, thank you, but how does it work?
I do not really understand the explanation from the administrator/deployment guide??

best regards

 

[tom]

you add all your servernames which are sending emails with your domain.

if you receive now emails with your own domain as sender but the IP of the sending server is not listed on your backscatter list, the message will get the defined spam score. (e.g. start with 2 or 3).

 

[Patrik]

Wow! Great function!
Now the Mail Gateway runs perfect -> typical proxmox

thank you!
best regards

 

[Fear37]

I check the options in the Mail Gateway and create an DNS entry as follows:

myDomain.at. IN TXT "v=spf1 mx a ip4:xxx.xxx.xxx.xxx a:mail.myDomain.at ~all"

Hi, where do you set this?

 

[Tapio Lehtonen]

It is a DNS record. Enter it as TXT record for your e-mail domain in your name service.
If you need to figure out what to write between the " characers, use Internet Search Engines with spf wizard to find tools to create the text for you.

 

[heutger]

Be careful with SPF, if like to use and set it, you are required not forget about it. Otherwise, your mails may be rejected.

 

[elkiem]

you add all your servernames which are sending emails with your domain.

if you receive now emails with your own domain as sender but the IP of the sending server is not listed on your backscatter list, the message will get the defined spam score. (e.g. start with 2 or 3).

Hi unfortunately I can't find this liste on the GUI where is this list? Thanks!