How can mail be sent to multiple persons in java spring?

Question

Java

I send a regular letter using the JavaMailSender and MimeMessageHelper classes, which actually has a setTo(String) method, and now if there is such a situation: you need to send the same letter to several people, it’s not in a cycle, yes (depending on how many recipients there are so many and send iterations)? How would it be better to implement

Answer 1

MimeMessageHelper.setTo(String[])
MimeMessageHelper.addTo()
True then ALL recipients of the message will see the addresses of ALL recipients. To avoid this, use the "Bcc" field - it is not sent. And in the "To" field, substitute the "left" address (the address of the mailing list, if any).
If this is not suitable, then send only in a cycle