Home Products Pricing Support Contact Sign up Log in

Does your SMTP server get blacklisted / email rejected?

Email rejected as spam or SMTP server blacklisted?



1. Basic authentication used by most normal SMTP servers leaves them open to abuse by spammers and scammers - this can cause them to be blacklisted meaning your mail may not be delivered!

2. We authenticate each login, validate email addresses used to send mail, enforce quotas, virus scan mail sent and use other methods to detect / stop potential abuse making our service much more secure and reliable.

3. If you try to send mail from a dialup / broadband connection many ISP's block port 25 (used for sending mail) and even if they do not many other ISP's will reject mail from you. Relaying your email through AuthSMTP can solve this!

Why not Sign Up Now - we are so confident you will be 100% happy with AuthSMTP all accounts are setup on a money back guarantee so no risk!

Otherwise return to Why You Need AuthSMTP for other features or Ask Us A Question.