Comment # 1 on bug 1216307 from Miika Alikirri

Hi!

Is your postfix configured to only support ipv4?

You can check it by running this:
```
# grep inet_protocols /etc/postfix/main.cf
```

If you see this, postfix is configured to use both ipv4 and ipv6:
```
inet_protocols = all
```

And you can fix it by changing the value to ipv4, like this:
```
inet_protocols = ipv4
```