nostr:npub179tsl2tja0khzppaugp2akq2jd8h950lg6kxuwawmdvmlhfz9htsrmalcr nostr:npub1dtw0ve3yrtslcda2l46lmm7t5z7m7sc6xf9r7cd98e37pd92utdsd885ra I'm using SMTP2GO for many years for all my projects. They offer SMTP port and sending via API and have a free tier available.