Note: Only the following special characters are supported in SMTP usernames and passwords:
Make sure your credentials do not contain unsupported characters such as spaces, quotes, or backslashes to avoid configuration errors.
% # @ : / + ? & ! $ ; = , ' ( ) *Make sure your credentials do not contain unsupported characters such as spaces, quotes, or backslashes to avoid configuration errors.
If your SMTP setup in cPFence is not sending emails, it may be due to compatibility issues with certain SMTP providers, such as MXRoute and ZeptoMail, that don’t support modern configuration variables. This guide will help you adjust your SMTP configuration to ensure proper functionality.
Steps to Fix SMTP Sending Issues
- Open the SMTP Configuration File:
nano /etc/s-nail.rc - Update the SMTP Configuration:
Replace the current SMTP settings in the file with the updated configuration below:
Original Configuration:
# cPFence SMTP Configuration - START set v15-compat set from="[email protected] (cp.xxx)" set mta=smtps://smtp%40xxx.cc:[email protected]:465 # cPFence SMTP Configuration - ENDUpdated Configuration:
# cPFence SMTP Configuration - START set smtp=smtps://smtp.xxx.cc:465 set smtp-auth=login set [email protected] set smtp-auth-password=password set ssl-verify=ignore set from="[email protected] (cp.xxx)" # cPFence SMTP Configuration - ENDTip for Microsoft 365 Users:
Some clients using Microsoft 365 have reported that the following settings worked for them:
If you're using Microsoft 365, try this configuration and see if it resolves the issue.set mta=smtp://smtp.office365.com:587 set smtp-auth=login set [email protected] set smtp-auth-password=yourpassword set from="[email protected]" set smtp-use-starttls - Save and Close the File:
Press
Ctrl + Oto save the file andCtrl + Xto exit the editor. - Test Your SMTP Configuration:
Send a test email using the following command:
mailx -v -s 'SMTP Test Email from cPFence' '[email protected]' <<< 'This is a test email to confirm the SMTP configuration for cPFence notifications.'Replace
[email protected]with your test email address.
Important Notes
- This workaround resolves the issue with SMTP not sending emails by using legacy-compatible configuration variables.
- Monitor your SMTP provider for updates regarding modern variable support, as older variables may become obsolete in the future.
Need Help?
If the issue persists or you require additional assistance, don’t hesitate to contact our support team through your client portal. We’re here to help!
