Hi - First I should apologise for not knowing which forum catagory to direct my question to - None of them seemed to fit this problem though, sorry!!

I am in Mexico at the moment and I'm using my laptop - I downloaded Calibre, converted my books to the format I need and then tried to email them, just as I had been doing at home on my PC - But, either I've made an error in my settings (although I've been through them over and over to try to find it, without success) or,could it be because my neighbor here is allowing me to use her wifi - I've tried using my own email address to send and I've also tried using my gmail address - Obviously, I really need some help, I just don't know what else to try

Thank you so much.