; Turn around channel
; Send: "TURN"
; Recv: "250 REMOTE.MED.VA.GOV has messages to export"
; or: "502 REMOTE.MED.VA.GOV has no messages to export"
NEXT(XMK)
; Returns the next message (XMZ) in basket XMK to go out.
; The next XMZ flagged 'high-priority' is next.
; Barring that, the next 'regular-priority' XMZ is next.
; Barring that, the next 'low-priority' XMZ is next.
; If an XMZ was involved in the failure of the previous transmission,
; that XMZ will be 'low-priority'.
SYNCH
; Recv: "220 REMOTE.MED.VA.GOV MailMan 8.0 ready"
ENTER
;
; Variables
; XMINST Institution number
; XMSITE Institution name
; XMIO same as ZTIO