As a default Sendy will use the Sendy installation domain as tracking URL. If you installed Sendy under the domain beeflovers.com, but you are sending using the email vegansrule.com, every single email will have links like ‘beeflivers.com/i/kjhkjdhfjksdhf’.
If you would like to use your sending email domain in your emails, and your Sendy installation url is different than the sending email’s domain, you can set it up in Sendy. But only few domains are allowed, so if you want to use many domains with Sendy, you will have to pay extra.
This is especially useful if you don’t want your Sendy installation domain influence the reputation of your sending email domains and get better inboxing.
This mod lets you set up unlimited amount of domains and subdomains automatically.