First, a mailer could find that mail presorted and/or barcoded zips through the system without delay while other mail, which needs more postal attention, is either delayed or is unpredictable.
There is some delay in getting your mail.
mnli hypothesis: There is some delay in getting your mail. premise: First, a mailer could find that mail presorted and/or barcoded zips through the system without delay while other mail, which needs more postal attention, is either delayed or is unpredictable.