Live Chat Icon For mobile
Live Chat Icon

Why do I get the error message ‘The transport failed to connect to the server ‘

Platform: ASP.NET| Category: Mail

This is a network related error. Your application cannot connect to the mail server specified.
Make sure that the following are true about SmtpMail.SmtpServer:

  • Is a valid SMTP Server
  • Make sure that the server System.Web.Mail is running or can connect to the mail server. Some times firewalls or proxy servers can get in the way.
  • Try specifying the value by IP address. Poor DNS resolution can sometimes hinder name lookups.
  • Make sure that the mail server is running at port 25.
  • If you did not specify a SmtpMail.SmtpServer property, or if SmtpMail.SmtpServer points to ‘localhost’ (or the equivalent), be sure the SMTP Service is running on port 25.
  • For testing purposes change the MailMessage.From and MailMessage.To properties to an address that exists on SmtpMail.SmtpServer. Some times this exception is thrown, when it really is a relay issue.

Share with

Share on twitter
Share on facebook
Share on linkedin

Related FAQs

Couldn't find the FAQs you're looking for?

Please submit your question and answer.