SMTP server closes connection unexpectedly
- by janin
I'm writing a python program to send emails, and when trying to send to yopmail, hotmail and some other hosts the connection gets closed by the server without a message. I tried connecting directly with netcat and the same thing happens. Here's what the exchange looks like :
$ nc smtp.yopmail.com 25
220 mx.yopmail.com ESMTP ***
ehlo mx.myhost.com…