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SMTP Error (452): Failed to set sender "email@yourdomain.com" (Space shortage, please try later).

Updated 2024-08-221 min read

Hosting documentation. Account access is coming soon. Always use the server details and nameservers assigned to your own account.

When trying to send emails or receive them, you notice you're not getting a bounce back or error with your mail client. The best thing to do is login to your cPanel account > Email Accounts > Select Roundcube and try sending from the server. If you see a error like the image below, it typically means the mail server queue is full, most likely from someone spamming. 

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If you come across this issue, please reach out to us so that we can resolve it for you. The issue takes a few minutes to fix and we can resolve it on the spot. 

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Why does this guide suggest trying Roundcube?

Sending directly through webmail can expose the server error when a desktop email application is not showing a useful message.

What does the article associate this 452 space-shortage error with?

It describes a full mail-server queue as a likely cause, potentially associated with spam activity. That requires a server-side investigation.

Who should investigate the error after it appears in webmail?

Contact Let.com with the exact error and affected mailbox so the team can inspect the mail server and investigate the queue. Contact Let.com.

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