Top "Mailman" questions

Postfix-Mailman "Recipient address rejected: User unknown in local recipient table"

I assume the error is an issue with my postfix configuration. I've followed the steps in the instructions here to …

ubuntu configuration ubuntu-14.04 postfix-mta mailman
Best email marketing software (alternative to PHPlist)

Are there good alternatives to PHPlist out there? Particularly in ruby on rails? We are looking to build a product …

email newsletter mailman phplist