Forum Discussion
Nikoolayy1
Mar 22, 2021MVP
For SMTP there is a posible solution as it is similar to HTTP as it also has headers:
https://devcentral.f5.com/s/question/0D51T00006i7N6U/adding-xheader-to-smtp
For DNS there is th EDNS Client Subnet:
https://devcentral.f5.com/s/articles/using-client-subnet-in-dns-requests-31948