How do I change the site mail address? I want to change my site-wide email address. To do this, I changed the settings on admin/config/system/site-information. However, when I send an email from rules, it still uses the old email address. 

How can I get the new email address to be picked up?
Based on the comments, and narrowing down the problem to the Rules module itself, or its integration with the mail system:


Tokens work elsewhere
Tokens within the body of the message work but not the from field
No templates are used
Core mail as well as third-party mail are affected
Clearing the cache, including the rules one, had no effect


It would appear to be a bug in the Rules module or the mail delivery part of it. I would suggest adding an issue to the Rules issue queue and see if they can further explore options for correcting the problem.