Making one’s Messenger topic a du‘aa’ (supplication) or word of wisdom

There are “topics” for Messenger of different types, including some that are called Islamic topics. I chose one of these topics for my e-mail. Is it permissible for me to do that? Please note that chat or writing begins with this Islamic topic that I chose.

Praise be to Allah, and blessings and peace be upon the Messenger of Allah:

There is nothing wrong with using Messenger topics and choosing useful words, or beneficial supplications, or good lines of poetry. That will serve as a reminder to one’s friends, and will prompt and remind them to do good and obey Allah.

And Allah knows best.