Maximum / best:
- possibility to override all SMTP configuration variables per site in multisite configuration
DISCOURSE_SMTP_ADDRESSDISCOURSE_SMTP_PORTDISCOURSE_SMTP_USER_NAMEDISCOURSE_SMTP_PASSWORDDISCOURSE_SMTP_ENABLE_START_TLSDISCOURSE_SMTP_DOMAIN
Minimum:
- Possibility to override the following SMTP related variables per site
DISCOURSE_SMTP_USER_NAMEDISCOURSE_SMTP_PASSWORD
in their config/multisite.yml equivalents
Background for minimum: given no other choices I can set things up to live with one SMTP server but surely need separate SMTP users (senders). Sending mail from address in a different domain than the discourse site runs on looks unfortunately like a deal breaker