Sender Rewriting Scheme (SRS)
Posted: 03 Feb 2019 10:41
Hi,
I've been struggling for some time to find out why my mail is blocked by Gmail, Hotmail etc.
I now installed SRS on the server and it seems it solved my problems. As I didn't find any info about installing SRS (postsrsd) on the EFA server I'll tell what I did to make it work.
First: SRS is made to be sure SPF is intact when you forward messages.
FIrst, install the program:
>cd /tmp/
>curl -L -o postsrsd.zip https://github.com/roehling/postsrsd/archive/master.zip
>unzip postsrsd.zip
>cd postsrsd-master/
>yum install cmake (We need cmake to install)
>make
>make install
Then copy the lines inside /usr/local/share/doc/postsrsd/main.cf.ex to /etc/postfix/main.cf
You can simply cat it to your main.cf but I prefer to do it manually so:
>less /usr/local/share/doc/postsrsd/main.cf.ex
>nano /etc/postfix/main.cf (and copy it underneath everything
Check if this comes back with your domain:
>postconf -h mydomain
if not, edit the default config of postsrsd and put in your domain here:
SRS_DOMAIN=example.com
Now enable postsrsd
>service postsrsd start
If no errors reload postfix
>service postfix reload
If all is working you get now strange from addresses in mailwatch, but your mails won't be blocked anymore by Gmail, hotmail etc.
Greetz
I've been struggling for some time to find out why my mail is blocked by Gmail, Hotmail etc.
I now installed SRS on the server and it seems it solved my problems. As I didn't find any info about installing SRS (postsrsd) on the EFA server I'll tell what I did to make it work.
First: SRS is made to be sure SPF is intact when you forward messages.
FIrst, install the program:
>cd /tmp/
>curl -L -o postsrsd.zip https://github.com/roehling/postsrsd/archive/master.zip
>unzip postsrsd.zip
>cd postsrsd-master/
>yum install cmake (We need cmake to install)
>make
>make install
Then copy the lines inside /usr/local/share/doc/postsrsd/main.cf.ex to /etc/postfix/main.cf
You can simply cat it to your main.cf but I prefer to do it manually so:
>less /usr/local/share/doc/postsrsd/main.cf.ex
>nano /etc/postfix/main.cf (and copy it underneath everything
Check if this comes back with your domain:
>postconf -h mydomain
if not, edit the default config of postsrsd and put in your domain here:
SRS_DOMAIN=example.com
Now enable postsrsd
>service postsrsd start
If no errors reload postfix
>service postfix reload
If all is working you get now strange from addresses in mailwatch, but your mails won't be blocked anymore by Gmail, hotmail etc.
Greetz