I forget. What is the maximum weight you can send from without going to the Post Office? I think it's 7 oz or 13 Oz?
You can't mail anything over 13 oz with stamps from home.
Electronic postage, it should't matter.
What Cozi said :-) Packages ove 13 oz. with untraceable postage (stamps) must be passed over the counter at any post office.
Max wieght with printable postage is 70 lbs. USPS does not accept pacakges larger than that. with stamps...see above
Thank you for your patience