It is possible to get to a situation where Odoo would try to send an email without a `From:` header address.
In such case, you're unlucky if you don't have access to the underlying deployment, or if you use multiple databases in a single Odoo instance and each of them uses a different mail configuration.
To make this configuration easier to use and cover those use cases, here I add support for a new ICP: `mail.default.from`. It will be used when present, so it shouldn't affect existing deployments. When present, it will allow a admin to configure the default sending address just with Odoo itself.
closesodoo/odoo#38874
X-original-commit: 5010ce630a7f0e01d45d99c9083318b50f9f624a
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>