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SPF Check
#1
[Not Solved] SPF Check
Hi my friends.....

Please I would like to know how can I configure in my Sentora, what postfix or my server, check spf record from all my ingoing mails to avoid a lot of ingoing spam... please may you to help me?????

Thanks...
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#2
[Not Solved] RE: SPF Check
(01-24-2019, 08:10 AM)cfreire Wrote: Hi my friends.....

Please I would like to know how can I configure in my Sentora, what postfix or my server, check spf record from all my ingoing mails to avoid a lot of ingoing spam... please may you to help me?????

Thanks...

I will post my steps for installing SPF, but please note that I use CentOS 7 and this might not work for other OS systems, and that I haven't tested these steps as I present them here (I also install other things at the same time as I set up SPF checks) so perhaps try them on a test server first Smile

Install the SPF Policy Daemon:

Code:
yum install pypolicyd-spf


Edit the Postfix master.cf file:

Code:
vi /etc/sentora/configs/postfix/master.cf


At the end of this file, add:

Code:
policy-spf      unix    -       n       n       -       -       spawn
  user=nobody argv=/usr/libexec/postfix/policyd-spf


and save the changes.

Edit the Postfix main.cf file:

Code:
vi /etc/sentora/configs/postfix/main.cf


Cursor down to the smtpd_recipient_restrictions value and find the line:

Code:
reject_unauth_destination,


Right after this line, add a new line with this:

Code:
check_policy_service unix:private/policy-spf,

Now go to the end of this same file and add:

Code:
policy-spf_time_limit = 3600s


and save the changes.

Restart Postfix:

Code:
systemctl start postfix

I forget where I got this info from as I have my own notes for setting up servers etc. and I just extracted the above from these notes, but I think it might have been here: https://zurgl.com/how-to-configure-spf-in-postfix/

Let us know how you get on.

Keith.
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#3
[Not Solved] RE: SPF Check
(01-24-2019, 08:45 AM)fearworks Wrote: I will post my steps for installing SPF, but please note that I use CentOS 7 and this might not work for other OS systems, and that I haven't tested these steps as I present them here (I also install other things at the same time as I set up SPF checks) so perhaps try them on a test server first Smile

Install the SPF Policy Daemon:

Code:
yum install pypolicyd-spf


Edit the Postfix master.cf file:

Code:
vi /etc/sentora/configs/postfix/master.cf


At the end of this file, add:

Code:
policy-spf      unix    -       n       n       -       -       spawn
  user=nobody argv=/usr/libexec/postfix/policyd-spf


and save the changes.

Edit the Postfix main.cf file:

Code:
vi /etc/sentora/configs/postfix/main.cf


Cursor down to the smtpd_recipient_restrictions value and find the line:

Code:
reject_unauth_destination,


Right after this line, add a new line with this:

Code:
check_policy_service unix:private/policy-spf,

Now go to the end of this same file and add:

Code:
policy-spf_time_limit = 3600s


and save the changes.

Restart Postfix:

Code:
systemctl start postfix

I forget where I got this info from as I have my own notes for setting up servers etc. and I just extracted the above from these notes, but I think it might have been here: https://zurgl.com/how-to-configure-spf-in-postfix/

Let us know how you get on.

Keith.


Excellent my friend, I have installed this complement and I ll probe it these days... I ll say you any novelty... Thanks, regards.
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