Il 2017-09-11 14:23 Philip Paeps ha scritto:
On 2017-09-11 14:13:29 (+0200), Davide Marchi wrote:
activating a backup server I realized that some spammers using this
server to send spam to my relay_recipient_maps addresses. Spam is then
successfully forwarded to the main server.
Is there a parameter to prevent this type of action? A type check "do
not receive email if the main server is reachable...?
Or should I operate directly by SpamAssassin?
Your backup servers should have the same filtering in place as your
main server. If not, spam will sneak through.
it's so
For a simple setup, a separate backup server will often do more harm
than good.
:-|
If you're using postscreen and you have multiple IP addresses
configured,, you should investigate the
``postscreen_whitelist_interfaces`` option to give spammers who try
backup MXes a hard time.
no, I've not multiple IP addresses configured..
Last time I checked, it was not possible to share the postscreen
temporary whitelist between machines.
Philip
Thanks very much Philip for your tips,
I will investigate ;-)
ciao!
Davide
