/TRIM[=keyword[,...]]
       /NOTRIM[=keyword[,...]]

    For interactive PMDF MAIL sessions, specifies for which
    operations header lines will automatically be trimmed or left
    intact. The accepted keyword values are EXTRACT, FORWARD, PRINT,
    REPLY, RESEND, SEND, ALL, and NONE.

    The /TRIM qualifier specifies which commands by default assume
    /TRIM; the /NOTRIM qualifier specifies which commands by default
    assume /NOTRIM. Specifying /TRIM without any qualifiers implies
    /TRIM=ALL while specifying /NOTRIM without any qualifiers implies
    /NOTRIM=ALL.