Halachot of Mishloach Manot: Part 2

Purim is coming up, just a review of some of the  halachot of mishloach manot. If a person gives it   with, let's say a plate, say a glass, or a metal  tray, then their shailah is about tevilat keilam.   So it's best to tovel the plate or the tray ahead  of time, without a bracha though, and you should   let the person know that it was toveled but that  perhaps they should ask a shailah about whether   they should tovel it again because there's a  question whether the tefillah that a person   does if they're giving it away, if it helps to  the friend, and therefore it's best that the one   you're giving it to should also tovel it, but  he could ask his own questions to his own rabbi   about what he should do. There's a question,  if a person sends mishloach manot, let's say   with Amazon or with any of these people who  will deliver for you, if you make the order   before Purim and it will arrive on Purim, does a  person fulfill the mitzvah or does it have to be   sent on Purim as well? There are poskim, the Aruch  Hashulchan says that you have to send it on Purim.   The mitzvah has to be done on Purim itself.  Not just does it have to arrive at his house,   but it has to be sent as well. Others say  that it is fine. You can send it in advance   and you're yotzeh the mitzvah. So these are  just issues that a person should be aware of.