Sodexo
Doppler Relay offers Free Trial, but Kingmailer does not.
Doppler Relay is designed for Large Enterprises, Medium Business and Small Business.
Kingmailer is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Doppler Relay begins at $26.50/Month, while pricing details for Kingmailer are unavailable.
Some top alternatives to Doppler Relay includes SMTP, Campaigner, Moosend, Aritic Mail, JangoSMTP, MailerSend, Flowmailer, Mailrelay, MyBizMailer, Mailchimp Transactional Email, UniOne and Takeout.
Some top alternatives to Kingmailer includes SMTP, Campaigner and Moosend.