I have encountered the phrase "I am writing to inform..." several times in an E-mail. However, I have never seen this phrase used with any verb other than "inform" before. Thus, I am not very confident in the validity of the following sentence:
"I am writing to request your permission to organize an interview..."
I would appreciate if anyone could tell me if the sentence above is within the norm of polite business language and if I could use the phrase with any verb other than inform. Thank you in advance for your help.