Oh well, it looks like smtp.orange.net just doesn't want to play anymore. Not a problem though as I'm now successfully sending email using my ISP's SMTP server instead.
It's not a DNS issue as the server will resolve to the above IP address. I'm also unable to ping this server but this may be the default behavior for smtp servers to not respond to ICMP requests (can ...
I've been using my Orange account for a few years now and have always used pop.orange.net / smtp.orange.net. Now over the last 18 or so months I've occasionally not been able to send emails due to is ...