Context Deadline Exceeded

The e-mail SMTP server is unreachable, this may be a temporary outage of the server or a limit in the sending rate of the SMTP server.

Connection Refused

This error occurs when the SMTP server you are trying to connect to refuses the connection. A few things to consider when getting this error.

• What are the limits of your email provider? Most providers limit the number of emails that can be sent in a given amount of time.
• Is your email address out of space? If your email is running out of space you may run into issues sending multiple emails.

Incorrect authentication data

• This error occurs when your SMTP settings are incorrect for your email address.