Issue:
You are able to send emails successfully via the webmail interface, but encounter bounce-back errors when sending emails through a desktop email client such as Microsoft Outlook. The error message typically reads:
The following recipient(s) could not be reached:
[email protected] on [date and time]
550 [email protected]: No such user here
Cause:
This issue is typically due to incorrect email client configuration.
Resolution:
Please follow the steps below to resolve the problem:
SMTP Server Configuration
Ensure that your outgoing (SMTP) mail server is set to:
mail.yourdomain.com
(Replace yourdomain.com with your actual domain name hosted on our servers.)
From Address Validation
Set your “From” email address to the same as your email login address.
For example, if your email login is [email protected], your “From” address must also be [email protected].
The server enforces this to prevent spoofing and unauthorized use.
Enable SMTP Authentication (for Outlook users)
If you’re using Microsoft Outlook (e.g., Outlook 2003 or newer), do the following:
Go to Account Settings
Click More Settings
Select the Outgoing Server tab
Check the box: My outgoing (SMTP) server requires authentication
Ensure Use same settings as my incoming mail server is selected
Once these settings are updated, restart your email client and try sending the email again. This should resolve the bounce-back issue.
