msmtp
An SMTP client. tldr-pages
On several platforms
Several platforms
An SMTP client. It reads text from stdin and sends it to an SMTP server.
Send an email using the default account configured in ~/.msmtprc
echo "Hello world" | msmtp to@example.orgIdentifySend an email using a specific account configured in ~/.msmtprc
echo "Hello world" | msmtp --account=account_name to@example.orgIdentifySend an email without a configured account. The password should be specified in the ~/.msmtprc file
echo "Hello world" | msmtp --host=localhost --port=999 --from=from@example.org to@example.orgIdentify