Why is it that when I am away from home wifi, but connected to another wifi, I am able to receive emails on my iPhone, but when I try to reply, or try to send a new msg, I always get the error msg "...rejected by server".
I can send email by webmail (Plusnet) OK.
This has always been the case since I've had the iPhone, and several times I have spent time on the phone to Plusnet trying to resolve this, checking all the mail settings, authentication, passwords, etc. etc.
I've tried all the so-called fixes on Google to no avail.
Any ideas???