Recently I receive a request: users' emails are stored in the database, and as request of a user, the system will send an email on their behalves.
To add more context, it's like sending an email from the vendor, to their customers' email addresses. But it's not a fixed email (it depends on which vendor ask the system).
Using JavaMail, I can simply set the from field. But something doesn't seem right. When searching for this kind of work, I come across "Email spoofing" – which looks like what I'm going to do. There are some drawbacks for this approach, such as it may make the emails attractive to the spam filters, and so on…
Ofcourse I can just do as the client want, but I just wonder, is there any better alternative?
Best Answer
So long as it's at the user's request, there's nothing questionable about doing this. It's just like your system is the email client. Sending emails from an address without the address owner's approval is a different story, of course.