Emails can not be received/sent on a Plesk server due to stopped MailEnable SMTP Connector service

Symptoms

• Emails can not be received/sent on a Plesk server.

• In the Event Viewer > System the following error can be found:

  CONFIG_TEXT: The MailEnable SMTP Connector service terminated unexpectedly. It has done this 3 time(s).

• In Event Viewer > Application the one below:

  CONFIG_TEXT: Faulting application name: MESMTPC.EXE, version: 1.0.0.59, time stamp: 0x606d0050
  Faulting module name: MSVCR90.dll, version: 9.0.30729.8387, time stamp: 0x51ea1bbd
  Exception code: 0x40000015
  Fault offset: 0x0000000000042686
  Faulting process id: 0x1ba8
  Faulting application start time: 0x01d7901bd812cbd8
  Faulting application path: C:\Program Files (x86)\Plesk\Mail Servers\Mail Enable\Bin64\MESMTPC.EXE
  Faulting module path: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.8387_none_08e793bfa83a89b5\MSVCR90.dll
  Report Id: a65333d9-fc48-11eb-80f1-005056bbec6f
  Faulting package full name:
  Faulting package-relative application ID:

Cause

Due to the faulting module, MailEnable SMTP Connector service enters the Stopped state, and email can not be processed. It can be checked in Tools & Settings > Services Management.

Resolution

Contact MailEnable Support for further investigation of the issue.

As a workaround:

1. Log into Plesk.
2. Go to Tools & Settings > Services Management.
3. Start the MailEnable SMTP Connector service by pressing on the Start the service button: