I was wondering if anybody has an SMTP server that could be used no matter what ISP you are using to send. For example, on my phone I am on Bell cellular, so I have a Bell SMTP server for when I'm on 3G/LTE. My home email is Telus, so is my home network. So if I'm on wifi at home, I need to use Telus' SMTP to send email.
I stumbled on a method using my Gmail account, but then I find it sends as the Gmail account, not my Telus account.
https://www.siteground.com/kb/google_free_smtp_server/
Where this has come to a head is my uncle who is not tech tavvy will be taking his laptop to travel, and wants to use Outlook. There's no way I can get him to switch SMTP servers as he goes.
And yes, I know converting to Gmail solves the issue, but it adds an issue of changing email addresses- which won't work.