I receive this message when I send mail from my business software Error with sending sender;Server says:553 sorry, your envelope sender is in my badmailfrom list .How can be fixed?
I need to setup a mailing list for myself and others. I have a Linux server. I would prefer not to have to spend a few day learning something but if that is needed, so be it. I’m open to all option such as 3rd party solutions.