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4.3.0 stops Microsoft Outlook from Sending emails

lhochman

By lhochman
in Malwarebytes 4.x Beta

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Malwarebytes

Malwarebytes

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***This is an automated reply***

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exile360

exile360

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Greetings,

That's very strange since the rootkit scanning option only affects manual scans and scheduled scans; it has no impact on real-time protection.  That said, Malwarebytes may be loading the rootkit scanning driver into memory when the option is enabled and that could be what is causing the problem.

Just to test, please re-enable rootkit scanning and then try disabling the Web Protection module (you can do so by right-clicking on the Malwarebytes tray icon and clicking where it says Web Protection: On then clicking Yes if prompted by User Account Control), then wait around 30 seconds or restart the system to allow the protection to refresh, then try your email again to see if it now works.

It's also worth trying to restore the advanced options for Exploit Protection as those settings have been known to sometimes cause issues with MS Office applications, including Outlook.  To do so, open Malwarebytes and access settings by clicking the small gear icon in the upper right, then select the Security tab and scroll down to the Exploit Protection section then click the Advanced settings button and click the Restore Defaults button on the lower left, then click Apply and wait around 20 seconds for the protection to refresh, then test to see if Outlook works.

Please let us know how it goes and if either of those options makes any difference or not.

Thanks

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lhochman

lhochman

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exile360,

The rootkit solution actually did not work. I tried again and the emails were not going through.

I did follow your instructions and the RESTORE DEFAULTS seems to have fixed things.  I have sent 6 emails without issue.  Then tried rebooting and it is still working.

Thank you very much for your quick response!!

 

Larry

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AdvancedSetup

AdvancedSetup

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I'm glad that works for you, but seems odd because the clean removal process removed ALL settings so it has to go back to defaults.

I will report the behavior to our QA Team though just in case.

Is there anything else we can do to assist you then at this time?

Thank you again

 

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exile360

exile360

Posted
Posted

Based on reports from other affected users, there appears to be some kind of issue where recent builds of Malwarebytes fail to honor the default advanced settings for Exploit Protection after install and this is corrected by using the Restore Defaults function; a clean install fails to correct it often times, likely because whatever is causing it has to do with the default configuration file that controls the settings.

I suspect this is also why affected users report that even though clicking 'Restore Defaults' fixes it, none of the settings in the UI actually appear to change, meaning the UI indicates that the settings are already configured to their default values even though they actually are not, and this also explains why many affected users report that they never modified any of the settings to begin with so they should have already been set to their default values from the start.

I've reported every case I've seen to the team, however I do not know what the current status of the issue is from the Dev/QA side.

 

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exile360

exile360

Posted
Posted
25 minutes ago, AdvancedSetup said:

It's controlled by the following .json file which is deleted during the Clean Removal process by MBST

C:\ProgramData\Malwarebytes\MBAMService\config\AeConfig.json

 

Yes, and I suspect that the .json file that gets installed/downloaded/created on a fresh install of the most recent builds is somehow getting corrupted or is incorrectly formatted, resulting in many users having this issue unless they manually restore defaults (which reverts to the settings in the known good/protected backup config files I believe).

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