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Unable to Install Mail Server on Ubuntu
I had bought two droplets from Digital Ocean a couple of weeks back. I have built an SMTP on first droplet using SSH Putty and all the process gone well :)
Now, I am trying to build another SMTP on the second droplet by following the same procedure but this time I am getting an error:
“The repository ’http://ppa.launchpad.net/brightbox/ruby-ng/ubuntu focal Release’ does not have a Release file.”
Here is the log image: https://imgur.com/3AfYqh6
I have also tried to build an SMTP using Postal, but I am getting the same error here as well.
How can I figure our this issue? Any help from the community would be appreciated!
VPS OS: Ubuntu 20.04 (LTS) x64
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