custom DKIM selector

[bilogic]

Fixes https://github.com/mail-in-a-box/mailinabox/issues/2348

Allows us to avoid a DKIM TXT record clash when in use with other sending servers. Thank you.

[bilogic]

@JoshData is this ok?

[JoshData]

I would like to avoid using /etc/mailinabox.conf for new settings and put the settings in $STORAGE_ROOT, e.g. $STORAGE_ROOT/mail/dkim/selector.txt.

/etc/mailinabox.conf isn't included in backups and was meant for really low-level settings needed to do automated installs like the IP address.

[bilogic]

ok, let me take a look as it has been a while :)

[bilogic]

@JoshData

I had a look.

Using $STORAGE_ROOT/mail/dkim/selector.txt would scatter configuration over alot of files. e.g. I have another PR trying to adjust TTL

How about $STORAGE_ROOT/mailinabox.conf, with it taking priority over /etc/mailinabox.conf?

[bilogic]

@JoshData

How about $STORAGE_ROOT/mailinabox.conf, with it taking priority over /etc/mailinabox.conf?

I'm of the view that this is the best way forward and have filed a PR to demonstrate it.

This would mean, we still have to add all settings into /etc/mailinabox.conf, but they can be optionally overridden and backed up by $STORAGE_ROOT/mailinabox.conf

Does this address all your concerns? Thank you!

[bilogic]

also brought this PR up to v68, ready to be merged

[bilogic]

I would like to avoid using /etc/mailinabox.conf for new settings and put the settings in $STORAGE_ROOT, e.g. $STORAGE_ROOT/mail/dkim/selector.txt.

/etc/mailinabox.conf isn't included in backups and was meant for really low-level settings needed to do automated installs like the IP address.

@JoshData what do you think of #2383? thanks