3 ms·It appears to me that mailcatcher linked by the parent is free and open source.by thegeomaster 9y agoIt appears to me that mailcatcher linked by the parent is free and open source.andris9 9y agoEthereal.email is also open source so it can be installed locally https://github.com/nodemailer/ethereal-www https://github.com/nodemailer/ethereal-wwwitake 9y agoTrue, but ethereal.email requires mongodb and redis. whereas mailcatcher just uses sqlite. no need to install extra apps.