i am seeing something like this (with some obfuscation):

{{}}
Warning: user1@company.com is not a recognized user, but sending mail anyway
Not sending mail to user user2@company.com with no permission to view PROJECT_repo » task/master/branch_name #3Warning: user3@company.com is not a recognized user, but sending mail anyway
Sending email to: user1@company.com user3@company.com
I feel like there should be a line break between "#3" and "Warning".

used platform is: Jenkins 2.235.5