Troubleshooting
Mailbox Full Issues
Last Updated: December 29, 2025A mailbox full issue occurs when an email account runs out of storage space.When this happens, new emails cannot be delivered to the mailbox. This affects both Email Hosting and Web Hosting packages that include email services. What Happens When a Mailbox Is Full When a mailbox reaches its storage limit: Delivery stops immediately until...
Cannot Send Email (SMTP Errors)
Last Updated: December 29, 2025SMTP errors occur when an email cannot be sent from your email account.This means the message is blocked or rejected before delivery. SMTP errors are usually configuration-related. What SMTP Is SMTP stands for Simple Mail Transfer Protocol.It is the system used to send outgoing email from your mailbox to other servers. If SMTP fails, outgoing...
Emails Going to Spam
Last Updated: December 29, 2025When emails are delivered to a spam or junk folder, it means the receiving mail server does not fully trust the message.This can happen even if the email is technically delivered successfully. Spam filtering is controlled by the receiving provider, not by ProRedLine. Common Reasons Emails Go to Spam Emails may be marked as spam...
Receiving Emails During Downtime
Last Updated: December 28, 2025At ProRedLine, all email services are hosted on secure and continuously monitored servers. If your mail server (for example, Main Server 1) becomes temporarily unavailable, incoming messages are not lost. Most sending mail systems follow the SMTP retry standard, which ensures that emails are safely queued until the server is back online. When delivery fails,...
