XF 1.3 ErrorException: Fatal Error: Class 'Zend_Mime' not found - library/XenForo/Mail.php:256


New member
Hello all, i am suferring a few little problems.

First, an error log every time i warn an user:

ErrorException: Fatal Error: Class 'Zend_Mime' not found - library/XenForo/Mail.php:256
Generado por: Luther, hace 5 minutos
#0 [internal function]: XenForo_Application::handleFatalError()
#1 {main}
Estado de la solicitud
array(3) {
  ["url"] => string(49) "http://www.zollydoom.com/members/test-user.4/warn"
  ["_GET"] => array(0) {
  ["_POST"] => array(10) {
    ["warning_definition_id"] => string(2) "11"
    ["notes"] => string(0) ""
    ["conversation_title"] => string(28) "Desobediencia a la autoridad"
    ["conversation_message"] => string(213) "Test User,

Contenido moderado debido a: ([url=http://www.zollydoom.com/posts/18/]Pornografia[/url])
Te invitamos a leer el Reglamento.

Fuente: [quote]aasasdasdasdasda
    ["content_action"] => string(14) "delete_content"
    ["delete_reason"] => string(11) "pornografia"
    ["content_type"] => string(4) "post"
    ["content_id"] => string(2) "18"
    ["redirect"] => string(47) "http://www.zollydoom.com/threads/pornografia.9/"
    ["_xfToken"] => string(8) "********"
An error log everytime i try to send an email to an user:

ErrorException: Fatal Error: Class 'Zend_Mime' not found - library/Zend/Mail.php:185
Generado por: Luther, Hoy a las 16:21
#0 [internal function]: XenForo_Application::handleFatalError()
#1 {main}
Estado de la solicitud
array(3) {
  ["url"] => string(51) "http://www.zollydoom.com/admin.php?users/email-send"
  ["_GET"] => array(1) {
    ["users/email-send"] => string(0) ""
  ["_POST"] => array(9) {
    ["criteria"] => string(42) "{"user_state":["valid"],"is_banned":["0"]}"
    ["total"] => string(1) "2"
    ["from_name"] => string(70) "ZollyDoom - Comunidad de Arte, Diseño, Producción Audiovisual y Más"
    ["from_email"] => string(20) "mailer@zollydoom.com"
    ["email_title"] => string(3) "asd"
    ["email_format"] => string(4) "text"
    ["email_body"] => string(30) "asdasdasdasdasdasdasdasdasdasd"
    ["_xfConfirm"] => string(1) "1"
    ["_xfToken"] => string(8) "********"
This a list of my error logs:

Server Log 1.png

Basically, i try to warn a user with 100 points (100 points it's the maximium threshold for a ban) but he didn't get banned and he can log in normally. You can see this user get 3 times a warn of 100 points:

Warn User 2.png

The user also never receive any notification for the warning/ban (via Forum or Email)

When i warn any user i get this blank page too:

Warn User 1.png

Also, when any user try to retrieve his lost password, i get a 500 error page:

Lost Password.png

Here is a list of my specific answers:

-Which version of XenForo you are running

-A list of all add-ons you have installed
UI.X Drift Theme by AudentioDesing
Traducción al Español (AR) by XenFácil

-Any outdated templates or phrases
  1. phrase_text Versión personalizada: 1.0.0 Beta 1, Versión maestra: 1.3.1
  2. style_property_visitorPanelAvatar_description_master Versión personalizada: 1.0.0 Beta 2, Versión maestra: 1.3.1
  3. template_code Versión personalizada: 1.0.0 Beta 1, Versión maestra: 1.3.1
-Custom styles in use
UI.X Drift

-Confirmation that all add-ons and styles are compatible with the XenForo version you are running

-Whether the problem occurs in a specific browser, or more than one browser
I tested in Internet Explorer and Google Chrome. Both with the same result.

-Whether the issue is experienced by all users or just some
I tested with 2 users.

-Browser add-ons in use, e.g. Adblock Plus, NoScript, etc.
No brower add-ons used.

-Any changes which were made prior to the problem occurring
Nothing, i was just styling my new theme.

-Steps to be taken to reproduce the problem and whether it can consistently be reproduced
1- Create an user account
2- Retrieve lost password
3- Error 500 and nothing happens.

1-Create an user account.
2-Made some posts.
3- Config a warning to 100 points of maximium threshold (100 points= ban for 3 days)
4- Warn the user with 100 points.
5- Nothing happens and the user can login normally
6- Send Email to any user from Control Admin Panel
7-Blank Page and nothing happens.

-Confirmation whether the problem can be reproduced here on XenForo.com
Only in my forum.

File Check its OK
Last edited:


XenForo moderator
Staff member
The error is suggesting that one or more files may be missing.

Can you download the upgrade .zip from your customer area and upload the files once again?


New member
Well, i had to do a fresh installation. All my database and progress had been lost.
But i manage to recover it quickly. Now my forum runs perfect.
I think when i upload the files with FilleZilla via FTP there were failed transactions and i didn't check them out.
I have to pay more attention next time.


Tracy Perry

Well-known member
I personally recommend WinSCP.
I have seen far too many problems caused by FileZilla over the years.
Transmit for the world (of Mac owners that is). :p

I had WAY to many problems with FileZilla (on both the Mac and Windows machines) and ended up using either YummyFTP or Transmit on the Mac and either WinSCP or CyberDuck on the Windows boxes.