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feat(postfix): add support for extending mynetworks #39

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Merged
technicalguru merged 1 commit into from
May 21, 2025
Merged

feat(postfix): add support for extending mynetworks #39

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1 change: 1 addition & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,7 @@ _mailserver-postfix_ requires various environment variables to be set. The cont
| `PF_TLS_CAPATH` | Directory that contains trusted CA root certificates. | `/etc/ssl/certs` |
| `PF_TLS_CAFILE` | Name of single file that contains trusted CA root certificates. | `/etc/postfix/CAcert.pem` |
| `PF_TLS_ADMIN_EMAIL` | E-mail address to be notified when TLS certificate is about to expire (10 days) | `postmaster@$PF_MYDOMAIN` |
| `PF_ADD_MYNETWORKS`| A string containing additional subnets with a mask to add to the `mynetworks` file in main.cf | |

## Volumes
You need to provide data volumes in order to secure your mailboxes from data loss.
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2 changes: 1 addition & 1 deletion etc/postfix/main.cf
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@@ -1,7 +1,7 @@
##
## NETWORKING
##
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 __PF_ADD_MYNETWORKS__
inet_interfaces = all
myhostname = __PF_MYHOSTNAME__
myorigin = __PF_MYORIGIN__
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4 changes: 4 additions & 0 deletions src/entrypoint.sh
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Expand Up @@ -74,6 +74,9 @@ fi
if [[ -z "${PF_MILTERS}" ]]; then
PF_MILTERS=
fi
if [[ -z "${PF_ADD_MYNETWORKS}" ]]; then
PF_ADD_MYNETWORKS=
fi
####################
# Helper functions
####################
Expand Down Expand Up @@ -131,6 +134,7 @@ copy_template_file() {
replace_var $TMP_DST 'PF_DB_PASS'
replace_var $TMP_DST 'PF_ENABLE_UTF8'
replace_var $TMP_DST 'PF_MILTERS'
replace_var $TMP_DST 'PF_ADD_MYNETWORKS'
fi
if [ ! -f $TMP_DST ]; then
echo "Cannot create $TMP_DST" 1>&2
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