I have been using dial.pipex for e-mails for many years, and have no had problems until summer 2016, which at the time I thought was due to transferring to a 'new' computer running Windows 7; previously I had been using XP. However, according to the 'experts' at TalkTalk this was a server rather than a local problem. It lasted several weeks, but normal service was resumed.
However, from 5 November onwards I have been able to receive mail as normal, but any out going messages fail to go. The error message I get is along the lines of
"An error occurred while sending mail. The mail server responded:
<an.other@mailserver.co.uk> recipient rejected - relay denied.
Please check the message recipient "an.other@mailserver.co.uk" and try again"
This appears to be the same for all email addresses I endeavour to contact, including those I use on a daily basis; they cannot all have an error!
What might have changed to cause this problem? Or is it with the dial.pipex server?
I am using Mozilla Thunderbird as my email application.