Neither CloudSMTPServer nor InitSky Bulk Email Server offers a free trial.
CloudSMTPServer is designed for Large Enterprises, Medium Business and Small Business.
InitSky Bulk Email Server is designed for Large Enterprises, Medium Business and Small Business.
Pricing for CloudSMTPServer Starts at $1,000/Month whereas for InitSky Bulk Email Server Starts at $100/Month.
Some top alternatives to CloudSMTPServer includes SMTP2GO, JangoSMTP, SocketLabs, SMTP, Kingmailer, Mailrelay, Mailercloud, Qualified, Workvivo, InitSky Bulk Email Server, Jetsend and IFTTT.
Some top alternatives to InitSky Bulk Email Server includes Campaigner, Moosend, SMTP, Omnisend, Email List Verify, BulkEmailVerifier, Constant Contact, GetResponse, Bulkresponse, SmartMailer, Bulky, Mailmust, Inbox Mailers, SendFox and CloudSMTPServer.