I am creating multiple dynamic newsletters, one for each language.

Since these are dynamic newsletters, I am using the Unsubscription request webpart.

This all works fine with one exception. The Unsubscription request webpart uses the "Newsletters - Unsubscription request" e-mail template. However, this e-mail template doesn't seem to correctly resolve localization macros. The e-mail always inserts the English string even if the Unsubscription request is executed on the Spanish version of a page.