Why did you use 18.04 when 20.04 also LTS version?
The postfix.04 present for the LTS version. 20.04 is newer than 18.04 so I think that some libraries will NOT support or work on 20 versions.
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Why did you use 18.04 when 20.04 also LTS version?
The postfix.04 present for the LTS version. 20.04 is newer than 18.04 so I think that some libraries will NOT support or work on 20 versions.