Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

random Error 104

3ddrestoration
3ddrestoration

Getting error 104 with or with out attachments. I have uninstalled and reinstalled the program with no change. This started after changing our domain provider. Doesn't happen every time but I can never get through the day without the error. Once it errors, I can't send any emails. Closing and restarting the program doesn't help. Don't seem to have any trouble receiving. I have received emails in the same session that sending failed. Any suggestions?

Getting error 104 with or with out attachments. I have uninstalled and reinstalled the program with no change. This started after changing our domain provider. Doesn't happen every time but I can never get through the day without the error. Once it errors, I can't send any emails. Closing and restarting the program doesn't help. Don't seem to have any trouble receiving. I have received emails in the same session that sending failed. Any suggestions?
Attached screenshots

All Replies (1)

3ddrestoration
3ddrestoration Question owner

Here's the troubleshooting info: 

 Application Basics

   Name: Thunderbird
   Version: 115.8.1
   Build ID: 20240304230937
   Distribution ID:

   Update Channel: release
   User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:115.0) Gecko/20100101 Thunderbird/115.8.1
   OS: Windows_NT 10.0 22631
   OS Theme:

   Launcher Process: Enabled
   Multiprocess Windows: 0/0
   Fission Windows: 0/0
             Enabled by default
   Remote Processes: 2
   Enterprise Policies: Inactive
   Google Location Service Key: Missing
   Google Safebrowsing Key: Missing
   Mozilla Location Service Key: Missing
   Safe Mode: false
   Memory Size (RAM): 31.7 GB
   Disk Space Available: 841 GB

 Mail and News Accounts
   account1:
     INCOMING: account1, , (imap) imap.gmail.com:993, 3, 10
     OUTGOING: , mail.enom.com:465, 3, 3, true

   account2:
     INCOMING: account2, , (none) Local Folders, 0, 3

   account3:
     INCOMING: account3, , (imap) mail.enom.com:993, 3, 3
     OUTGOING: , mail.enom.com:465, 3, 3, true

   account4:
     INCOMING: account4, , (imap) mail.enom.com:993, 3, 3
     OUTGOING: , mail.enom.com:465, 3, 3, true

 Libraries

     Library
     Status
     Expected minimum version
     Version in use
     Path

     RNP (OpenPGP)
     OK
     0.17.0
     0.17.0+PR2073.MZLA.115.8.1
     C:\Program Files\Mozilla Thunderbird\rnp.dll

 Calendar Settings

     richard@3ddautomotive.com

       Name
       Value

       Name:
       Type: caldav
       Disabled:
       Username:
       URI:
       Refresh Interval: 30
       Read-only: false
       Suppress Alarms: false
       Cache Enabled: false
       iMIP Identity: id1
       iMIP Disabled:
       iMIP Account:
       Organizer Id:
       Force Email Scheduling:
       Popup Alarms Supported:
       Alarms on Invitation Supported:
       Max Alarms Per Event:
       Attachment Supported:
       Max Categories:
       Privacy State Supported:
       Priority Supported:
       Event Supported: true
       Task Supported: false
       Local Time Supported:
       UTC/GMT Supported:
       Auto-Scheduling Supported: true

     info@3ddautomotive.com

       Name
       Value

       Name:
       Type: caldav
       Disabled:
       Username:
       URI:
       Refresh Interval: 30
       Read-only: false
       Suppress Alarms: false
       Cache Enabled: false
       iMIP Identity: id1
       iMIP Disabled:
       iMIP Account:
       Organizer Id:
       Force Email Scheduling:
       Popup Alarms Supported:
       Alarms on Invitation Supported:
       Max Alarms Per Event:
       Attachment Supported:
       Max Categories:
       Privacy State Supported:
       Priority Supported:
       Event Supported: true
       Task Supported: false
       Local Time Supported:
       UTC/GMT Supported:
       Auto-Scheduling Supported: true

     Home

       Name
       Value

       Name:
       Type: storage
       Disabled: false
       Username:
       URI:
       Refresh Interval:
       Read-only:
       Suppress Alarms:
       Cache Enabled:
       iMIP Identity: id1
       iMIP Disabled:
       iMIP Account:
       Organizer Id:
       Force Email Scheduling:
       Popup Alarms Supported:
       Alarms on Invitation Supported:
       Max Alarms Per Event:
       Attachment Supported:
       Max Categories:
       Privacy State Supported:
       Priority Supported: true
       Event Supported:
       Task Supported:
       Local Time Supported:
       UTC/GMT Supported:
       Auto-Scheduling Supported:

 Crash Reports for the Last 3 Days

 Remote Processes

   Type: Count

     GPU: 1
     Isolated Web Content: 1

 Add-ons

     Name
     Type
     Version
     Enabled
     ID

       Amazon.com
       extension
       1.1
       true
       amazondotcom@search.mozilla.org

       Bing
       extension
       1.0
       true
       bing@search.mozilla.org

       DuckDuckGo
       extension
       1.0
       true
       ddg@search.mozilla.org

       Google
       extension
       1.0
       true
       google@search.mozilla.org

       Wikipedia (en)
       extension
       1.0
       true
       wikipedia@search.mozilla.org

 Security Software

   Type: Name

     Antivirus: Microsoft Defender Antivirus
     Antispyware:
     Firewall: Windows Firewall