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Relayhosts can be setup using the mailcow UI

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andryyy 2017-09-14 11:09:18 +02:00
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docs/firststeps-relayhost.md
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Insert these lines into `data/conf/postfix/main.cf`. "relayhost" does already exist (empty), just change its value.
```
relayhost = [your-relayhost]:587
smtp_sasl_password_maps = hash:/opt/postfix/conf/smarthost_passwd
smtp_sasl_auth_enable = yes
```
As of September 12th you can setup relayhosts as admin by using the mailcow UI.
Create the credentials file:
```
echo "your-relayhost username:password" > data/conf/postfix/smarthost_passwd
```
Run:
```
docker-compose exec postfix-mailcow postmap /opt/postfix/conf/smarthost_passwd
docker-compose exec postfix-mailcow chown root:postfix /opt/postfix/conf/smarthost_passwd /opt/postfix/conf/smarthost_passwd.db
docker-compose exec postfix-mailcow chmod 660 /opt/postfix/conf/smarthost_passwd /opt/postfix/conf/smarthost_passwd.db
docker-compose exec postfix-mailcow postfix reload
```
### Helper script
There is a helper script `mailcow-setup-relayhost.sh` you can run to setup a relayhost.
``` bash
Usage:
Setup a relayhost:
./mailcow-setup-relayhost.sh relayhost port (username) (password)
Username and password are optional parameters.
Reset to defaults:
./mailcow-setup-relayhost.sh reset
```
Edit a domain afterwards and assign a relayhost for it to use.