Fix queue.outbound.ip-strategy values

[Cornelicorn]

Underscores are used in the code instead of hyphens: https://github.com/stalwartlabs/mail-server/blob/3081958765dd7b2a24066fe0f20d56c1797962ee/crates/utils/src/config/utils.rs#L484-488

[CLAassistant]

All committers have signed the CLA.

[Cornelicorn]

All committers have signed the CLA.

Something I noticed here: This project doesn't have a license yet, while the CLA promises that you will release contributions under a Free Software License ;)

[stappersg]

This project doesn't have a license yet

There is

• https://github.com/stalwartlabs/mail-server/#AGPL-3.0-1-ov-file
• https://github.com/stalwartlabs/jmap-server#AGPL-3.0-1-ov-file
• https://github.com/stalwartlabs/smtp-server#AGPL-3.0-1-ov-file
• https://github.com/stalwartlabs/imap-server#AGPL-3.0-1-ov-file

Still: Having a license for the website content would be good thing.

[Cornelicorn]

Still: Having a license for the website content would be good thing.

Yes that's what I meant, I'm quite aware that the servers theirselves have licenses ^^