This can occur for several reasons.
Make sure you have the proper spelling of the email address and no extra spaces.
The recipient mail server may be having problems.
If you have sent more than 150 emails in an hour this will occur. Accounts are limited to 150 emails an hour to limit spam abuse. You will want to throttle the application to 150 an hour or perform 150 at a time.
- 458 Users Found This Useful
Related Articles
Is port 587 available for email sending?
Yes, port 587 is available for SMTP sending with or without TLS/SSL.
Updating Outlook SSL Certificate
You may want to install SSL for your email or update an existing certificate you had installed...
Outlook: Unable to logon to the server using Secure Password Authentication
Outlook Express is setup to use Secure Password Authentication. Go to 'Tools' -> 'Accounts...'...
What are my mail server names?
Your mail server names are mail.yourdomain.com. The server name will be the same no matter how...
Setting Up Email on a Galaxy Device
From the home screen, tap Apps. Scroll to and tap Email.Enter your Email address and Password,...
