| Software | License | Strengths | |----------|---------|------------| | (not open-source, but low-cost: $59 one-time) | Commercial | Works perfectly with AWS SES (very cheap sending). | | Listmonk | AGPLv3 (free) | Modern, fast, written in Go + SQL. Self-hosted. | | PHPList | GPLv3 (free) | Veteran open-source newsletter manager. | | Mautic | GPLv3 (free) | Open-source marketing automation (more complex than MailWizz). |

MailWizz is known for being a cost-effective alternative to monthly subscription services like Mailchimp or Constant Contact.

The Standard MailWizz license is a one-time purchase. Saving a small amount over several months to buy a legitimate license is far more cost-effective in the long run than recovering from a malware infection or a lawsuit.