The error message indicates that there was a failure to authenticate with the SMTP server using the provided username and password. Let's break down the error message and the steps to troubleshoot it:
Error Summary: The error message states that the authentication with the SMTP server using the provided username "team@cfored.com" failed. Two possible authenticators (LOGIN and PLAIN) were attempted. The expected response code was 235, but the server returned the code "535" with the message "535 Incorrect authentication data."
SMTP Server Interaction: The log data shows the interaction between the sending server and the SMTP server. The sending server first connects to the SMTP server, initiates the STARTTLS command to establish a secure TLS connection, and then attempts to authenticate using the AUTH LOGIN command with the base64-encoded username and password.
Authentication Failure: The server responds to the AUTH LOGIN command with a base64-encoded challenge for the username ("dGVhbUBjZm9yZWQuY29t") and password ("NXgrQ3szRnFEITV4K0N7M0ZxRCE="). The sending server responds with the base64-encoded username and password, but the SMTP server returns the "535 Incorrect authentication data" error instead of the expected response code 235.
Troubleshooting Steps:
Check Credentials: Ensure that the provided username "team@cfored.com" and password are correct. Double-check for any typos or spaces in the credentials.
Verify SMTP Settings: Confirm that you are using the correct SMTP server hostname ("smtp.gmail.com" or another valid SMTP server) and port (usually 587 for TLS).
Account Security: If you're using two-factor authentication (2FA) on your email account, you might need to generate an "App Password" in your email account settings and use that password for SMTP authentication.
Less Secure Apps: Some email providers, like Gmail, have security settings that prevent access by "less secure apps." Make sure that this setting is enabled if you're using it to send emails.
Firewall or Network Issues: Ensure that there are no firewall restrictions or network issues that might prevent the server from connecting to the SMTP server.
TLS/SSL Compatibility: Verify that the server and SMTP server both support the same TLS/SSL version. Sometimes mismatched versions can cause authentication failures.
Error Messages: Check for additional error messages or warnings in the logs that might provide more context about the authentication failure.
Contact Support: If none of the above steps resolve the issue, you might need to contact your email provider's support or the server administrator for further assistance.
Remember to handle sensitive information like usernames and passwords with care. Always double-check settings and credentials before making changes.
The error message indicates that there was a failure to authenticate with the SMTP server using the provided username and password. Let's break down the error message and the steps to troubleshoot it:
Error Summary: The error message states that the authentication with the SMTP server using the provided username "team@cfored.com" failed. Two possible authenticators (LOGIN and PLAIN) were attempted. The expected response code was 235, but the server returned the code "535" with the message "535 Incorrect authentication data."
SMTP Server Interaction: The log data shows the interaction between the sending server and the SMTP server. The sending server first connects to the SMTP server, initiates the STARTTLS command to establish a secure TLS connection, and then attempts to authenticate using the AUTH LOGIN command with the base64-encoded username and password.
Authentication Failure: The server responds to the AUTH LOGIN command with a base64-encoded challenge for the username ("dGVhbUBjZm9yZWQuY29t") and password ("NXgrQ3szRnFEITV4K0N7M0ZxRCE="). The sending server responds with the base64-encoded username and password, but the SMTP server returns the "535 Incorrect authentication data" error instead of the expected response code 235.
Troubleshooting Steps:
Check Credentials: Ensure that the provided username "team@cfored.com" and password are correct. Double-check for any typos or spaces in the credentials.
Verify SMTP Settings: Confirm that you are using the correct SMTP server hostname ("smtp.gmail.com" or another valid SMTP server) and port (usually 587 for TLS).
Account Security: If you're using two-factor authentication (2FA) on your email account, you might need to generate an "App Password" in your email account settings and use that password for SMTP authentication.
Less Secure Apps: Some email providers, like Gmail, have security settings that prevent access by "less secure apps." Make sure that this setting is enabled if you're using it to send emails.
Firewall or Network Issues: Ensure that there are no firewall restrictions or network issues that might prevent the server from connecting to the SMTP server.
TLS/SSL Compatibility: Verify that the server and SMTP server both support the same TLS/SSL version. Sometimes mismatched versions can cause authentication failures.
Error Messages: Check for additional error messages or warnings in the logs that might provide more context about the authentication failure.
Contact Support: If none of the above steps resolve the issue, you might need to contact your email provider's support or the server administrator for further assistance.
Remember to handle sensitive information like usernames and passwords with care. Always double-check settings and credentials before making changes.