Hoiw to delete a big number of obstructions from Telnet?

I have a Windows 98 with a small local disk of total capacity 3.15 GB of
which I used more than one third. (I am left with 850 free MB.) Sometimes I
get nasty obstructions ( for instance of 1 or 2 MB) coming to my Outlook
Express Inbox and I can suddenly get no more E-mail. I know how to go to
Telnet , choose the high MB message and (if it is for instance number 25)
type "dele 25", press Enter and then type "quit" and press Enter.
This is OK if I have one obstruction, but the job gets too long if I have to
delete for instance 10 obstructions (exactly of the same MB, i.e. a repeated
nasty message) (let us say of numbers 16,17,18,...,24,25). My long way of
doing it is to type "dele 16", press Enter , type "dele 17", press
Enter,....,type
"dele 25", press Enter and then type "quit" and press Enter.
Is there a shorter way of deleting those 10 obstructions? I shall be much
obliged if some learned reader would help.
Have a nice weekend. Urban Kuran