Supanet email outgoing smtp server not sending away from home

Mail
1

My friend uses supanet and has trouble sending email from anywhere but his main house PC where the email address and internet was set up.

He uses em Client at his other house without issues and can send and receive no problems.

We have copied the settings, changed the password, tried all different ports and nothing works. He can receive on his laptop and phone but cannot send. The smtp server has never worked since we have been trying, we have rang supanet multiple times and they are adamant that it is not a problem their end.

The strange thing is that, on his phone, if he is in within range of his home where supanet was originally setup he can then send emails from his phone, which tells me it’s a problem their end and not ours.

If anyone has any other ideas it would be greatly appreciated it is driving me absolutely crazy.

2

My friend uses supanet and has trouble sending email from anywhere but his main house PC where the email address and internet was set up.

We have copied the settings, changed the password, tried all different ports and nothing works.

Sometimes that can happen due to a eg: different IP addresss, where if you setup a mailbox “at the same ISP as your physical internet connection”, the SMTP sending server “might then be only allowing specific locally assigned IP addresses to send” for security reasons, so then when you are away your house using another Wifi or Ethernet connection, you will get assigned a different IP address and it then fails to send. So have your friend check with Supranet if they have any restriction on what IP addresses are used when sending mail.

Global email addresses like eg: Gmail.com, Outlook.com, Yahoo.com don’t normally have that issue and will send with any internet Wifi or Internet Ethernet connection.

A friend of mine years ago had that problem everytime he went out of the country and hooked onto WiFi it wouldn’t send his Local ISP email address but would allways receive. So he had to “change the SMTP server address in his account setup” to match the physical internet connection he was using at the time which then sent ok. Then when he got home, he changed it back. He ultimately then created a global Gmail account and setup an automatic forwarding from his local ISP mailbox to avoid that problem in the future.

Sometimes that can also happen due to eg: “Supranet might only be allowing specific servers to send mail via them” for eg: Spam reasons, so then if you connect to another Wifi or Ethernet connection “outside of their allowed server list” it will fail to send. So have your friend check with Supranet if they are blocking any servers.

Sometimes that can also happen if you are eg: running a VPN where your assigned IP address can then change to a different VPN server in your country or to another country and then have problems sending mail. So if you are running a VPN, try completely disabling it to test.

So if Supranet has no IP address restriction, and no other Mail server restriction, and you have no VPN setup, then when your friend has that problem “away from home”, click the dropdown on the right of Refresh and click Show Operations. Then click the “Log” tab and look for any obvious error messages and paste them in this thread. We might then be able to see what’s wrong. Blank out anything personal in the log errors.