SMTP Troubleshooting

This page contains video tutorials on how to troubleshoot outgoing SMTP settings. This information will help you to identify various SMTP sending problems such as connection failure, failures due to wrong SMTP settings or failures due to email account hourly or daily limitations.

SMTP Settings Troubleshooting in iMac Mailer


  • Troubleshooting Internet connection failures, invalid SMTP port, SSL, TLS, authentication type, user name or password settings.
  • Dealing with connection failures caused by hourly and daily limitations imposed by email providers on user SMTP accounts.
  • Fixing SMTP problems, recreating an SMTP email account, validating SMTP settings, making sure mass email sending works.