It was alleged that the employee who was based at the sorting office in Motherwell had gained access to the home of a male pensioner after asking to use his toilet - in a clear breach of regulations relating to Covid-19.
It was however a second approach in the form of a note to the 68-year-old male householder which has led to the man’s arrest.
The Motherwell Times is privy to the alleged content of the note but has opted not to reveal it in a family newspaper.
A spokesperson for Police Scotland confirmed: “A 37-year-old man has been arrested and charged in connection with an indecent communication offence at a sheltered housing complex in Motherwell on Thursday, November 19.
“He has been released on an undertaking to appear at Hamilton Sheriff Court at a later date.
“A report has been submitted to the Procurator Fiscal.”
Royal Mail has said that the accused no longer works for them.