我跟日本的朋友用EMAIL聯絡,但送出郵件之後卻有一封英文信件寄來,內容大概是說郵件寄出失敗。為什麼會這樣的?是電郵網絡不同嗎(例如YAHOO只可以寄到YAHOO的地址)?
Hi. This is the qmail-send program at yahoo.com.
I'm afraid I wasn't able to deliver your message to the following
addresses.
This is a permanent error; I've given up. Sorry it didn't work out.
之後還有一些我跟對方的IP及地郵地址,這問題可以解決嗎?