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Added key selector change support #32

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Added key selector change support #32

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ca3e574
Added key selector change support since 'mail' might be already alloc…
dmolchanov Nov 4, 2019
83d0c15
install update
dmolchanov Jan 22, 2021
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11 changes: 11 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,17 @@ TLS and OpenDKIM support are optional.
-v /path/to/domainkeys:/etc/opendkim/domainkeys \
--name postfix -d catatnight/postfix
```
You may specify key selector if selector *mail* is already allocated by passing keyselector environment variable.
In this case $keyselector.private will be searched in /etc/opendkim/domainkeys inside container.

```bash
$ sudo docker run -p 25:25 \
-e maildomain=mail.example.com -e keyselector=app \
-e smtp_user=user:pwd \
-v /path/to/domainkeys:/etc/opendkim/domainkeys \
--name postfix -d catatnight/postfix
```

3. Enable TLS(587): save your SSL certificates ```.key``` and ```.crt``` to ```/path/to/certs```

```bash
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8 changes: 4 additions & 4 deletions assets/install.sh
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Expand Up @@ -121,10 +121,10 @@ localhost
*.$maildomain
EOF
cat >> /etc/opendkim/KeyTable <<EOF
mail._domainkey.$maildomain $maildomain:mail:$(find /etc/opendkim/domainkeys -iname *.private)
$keyselector._domainkey.$maildomain $maildomain:mail:$(find /etc/opendkim/domainkeys -iname $keyselector.private)
EOF
cat >> /etc/opendkim/SigningTable <<EOF
*@$maildomain mail._domainkey.$maildomain
*@$maildomain $keyselector._domainkey.$maildomain
EOF
chown opendkim:opendkim $(find /etc/opendkim/domainkeys -iname *.private)
chmod 400 $(find /etc/opendkim/domainkeys -iname *.private)
chown opendkim:opendkim $(find /etc/opendkim/domainkeys -iname $keyselector.private)
chmod 400 $(find /etc/opendkim/domainkeys -iname $keyselector.private)