Troubleshooting
Get under the hood with these in-depth articles.
General Troubleshooting
- Cannot Create a New Folder
- Troubleshooting Guide
- Postbox Troubleshooting Panel
- How To Take a Screen Shot to Illustrate Issues
- How to Use a Video or Screencast to Illustrate Issues
- How to provide Configuration Data to Postbox Support
Syncing Accounts & Data
- Office 365 Error: User is authenticated but not connected
- Office 365 Accounts Suddenly Stop Working
- Folders Unsubscribe or Disappear from iCloud, .mac, or .me Accounts
- Problems Checking for New Mail Without a Restart
- Missing IMAP Mail Folders
- Sent Messages Folder Syncing Between Postbox and Your Mobile E-Mail App
User Interface
- Folders in Italics Cannot be Edited or Deleted
- Gmail and the Bcc Header
- Combining RSS Feeds into a Single RSS Folder
- All Folders appear as subfolders under the Inbox
- Does Postbox support custom key mappings in macOS?
- No Unread Count Indicator for Gmail Folders or Labels
Moving, Marking, or Deleting Messages
- Mail Stuck in the Unsent/Outbox Folder
- Messages Return to the Inbox after Delete, Junk, or Archive Actions
- Office 365 Account To-Dos and Postbox Reminders
- Cannot Copy Messages to Sent Folder
- Topics Disappear and/or Do Not Stick
- Messages In Gmail Sub Folders Appear as Read
Content Display
Performance
Platform Issues
Data
Other
Error Codes / Error Messages
- Error: An error occurred during the update...
- Error: There are non-ASCII characters in the local part of the recipient address
- Error: Postbox can’t be opened because Apple cannot check it for malicious software.
- Error code: ssl_error_no_cypher_overlap
- Error: Cookies are disabled
- "The folder Inbox is full, and can't hold any more messages" error