https://sendsignal.dev 1 https://sendsignal.dev/pricing 0.9 https://sendsignal.dev/compare/postmark-alternative 0.7 https://sendsignal.dev/compare/resend-alternative 0.7 https://sendsignal.dev/blog 0.7 https://sendsignal.dev/changelog 0.6 https://sendsignal.dev/about 0.6 https://sendsignal.dev/contact 0.6 https://sendsignal.dev/privacy 0.3 https://sendsignal.dev/terms 0.3 https://sendsignal.dev/blog/introducing-sendsignal-tools 2026-08-19 0.6