I want to post a localised legal (GDPR) statement in the footer of every email sent out by WHMCS. Best would be when this is done in the email settings page in the footer section. However localisation is not possible there. Now I need to paste it into every email template, difficult to maintain changes!
I tried using <html lang=""> but to my knowledge no template token is available for this and this standard is not supported by all email / webmail apps anyhow. Other better compatible solutions are needed!