If incoming mail works but outgoing mail fails, the cause may involve the outgoing server settings, sign-in, service limits or another error. The correct checks depend on your email provider and application.
- Note the exact error, affected address, application/device and when it started.
- For cPanel-hosted mail, open Email Accounts > Connect Devices and compare the app’s outgoing server, port, encryption and authentication settings with the mailbox’s recommended secure settings.
- Use the full mailbox address and its password for authenticated sending where required. Do not substitute an internet provider’s outgoing server.
- For Microsoft 365 or Google Workspace, use that provider’s account/sign-in instructions rather than cPanel settings.
Do not disable encryption, accept certificate warnings, delete the email account or change POP message-retention settings as a general fix. Those changes can introduce other problems or affect locally stored messages.
Email support@abpages.com with the error details and a screenshot of the settings with passwords hidden. We can confirm the access and investigation required.
Reference: cPanel mail-client settings.
