listmonk
Run mailing lists and campaigns from a Go binary and PostgreSQL. Mail goes via an SMTP relay you choose (SES, Postmark, your own), which owns deliverability.
// NEWSLETTER
4 entries tagged with "newsletter"
// COMPARISONS
1// ENTRIES
3 entries
Keila
Newsletters and signup forms without Mailchimp: open source Elixir software you run behind your own SMTP relay, or that its maker hosts for you in the EU.
BillionMail
Send newsletters from your own mail server: Postfix, Dovecot, Rspamd and a campaign tool in one Compose stack. Needs outbound port 25 open and a PTR record.