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.

Thunderbird 78.6.1 - MAPI Error 2 when sending emails with attachments.

  • No replies
  • 1 has this problem
  • 13 views
steve199
steve199
more options

This problem only occures on a few of my customers computers.

Computers mainly Windows 10. I have one customer who bought a new PC with Windows Professional who has this problem. Another who got the problem after the 78.6.1 update??

It only affects users when they send without the MAPI_LOGON_UI. Below DIALOG = 0 when the error is generated. 

     @SM := GetProcAddress(MAPIModule, 'MAPISendMail');
     if @SM <> nil then
       begin
       Result := SM(0, Application.Handle, Message, DIALOG or MAPI_LOGON_UI, 0);
       end
     else
       Result := 1;

Any help that can throw light on this problem will be gratefully received!

I have a customer who wants to send 1000 emails. Hw doesn't want to press send 1000 times.

Steve Hall

This problem only occures on a few of my customers computers. Computers mainly Windows 10. I have one customer who bought a new PC with Windows Professional who has this problem. Another who got the problem after the 78.6.1 update?? It only affects users when they send without the MAPI_LOGON_UI. Below DIALOG = 0 when the error is generated. @SM := GetProcAddress(MAPIModule, 'MAPISendMail'); if @SM <> nil then begin Result := SM(0, Application.Handle, Message, DIALOG or MAPI_LOGON_UI, 0); end else Result := 1; Any help that can throw light on this problem will be gratefully received! I have a customer who wants to send 1000 emails. Hw doesn't want to press send 1000 times. Steve Hall