Glitch when Changing E-mail - Old E-mail Not Removed from List

I have had this account for quite a while, and around a year ago I changed my e-mail to a newer e-mail I use these days.

I enabled forwarding on my old e-mail to go to my new e-mail to make sure I don't miss things, and noticed that the BHW promotion e-mails still go to the old e-mail as well as the new e-mail.

This isn't really a major issue, but I think it does put extra unnecessary strain on the BHW mailing server to send e-mails to addresses that have been changed in the past as well as the newer updated e-mails.

For example, someone with less than pure intentions could continually change the e-mail address of their account and I imagine the mail server would add every one of those addresses to the mailing list.

Anyway, just wanted to report this because I keep forgetting to when I notice the duplicate e-mails after every promotion.

This is still an issue and I am double receiving messages (one to the old and one to the updated e-mail), just a heads up.