mailcow-dockerized-docs/docs/disable_sender_verification.md

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2017-05-06 00:22:26 +02:00
This option is not best-practice and should only be implemented when there is no other option available to archive whatever you are trying to do.
Simply create a file `data/conf/postfix/check_sasl_access` and enter the following content. This user must exist in your installation and needs to authenticate before sending mail.
```
user-to-allow-everything@example.com OK
```
Open `data/conf/postfix/main.cf` and find `smtpd_sender_restrictions`. Prepend `check_sasl_access hash:/opt/postfix/conf/check_sasl_access` like this:
```
smtpd_sender_restrictions = check_sasl_access hash:/opt/postfix/conf/check_sasl_access reject_authenticated_sender_login_mismatch [...]
```
Run postmap on check_sasl_access:
```
docker-compose exec postfix-mailcow postmap /opt/postfix/conf/check_sasl_access
```
Restart the Postfix container.