Error "Concurrent connections limit exceeded" After Upgrading to NPrinting February 2025 SR1
Hi All,
After upgrading Qlik NPrinting from September 2019 to February 2025 SR1, we encountered an issue where reports are not sent to some user emails. The tasks run successfully, but some emails fail to deliver with the following error message:
20250714065008 Error Failed to send email for user 'XXXXXXX' {XXXX-XXXX-XXXX-XXXX-XXXX}. ERROR: 4.3.2 Concurrent connections limit exceeded. Visit https://aka.ms/concurrent_sending for more information. [Hostname=server.outlook.com]
Previously on NPrinting September 2019, all reports were sent without any issues.
We have contacted support and already tried adjusting the following parameters in the scheduler.config file as suggested in the release notes:
max-mail-client-connection-attempts: (default is 2)
mail-client-connection-attempts-delay-ms: (default is 500 ms)
Despite these changes, the problem persists. We’re unable to ask the SMTP admin to change server-side settings, especially since everything worked fine before the upgrade.
Has anyone else experienced this issue after upgrading? Any advice or workarounds would be greatly appreciated.
If you need to configure them I suggest you to contact the support team.
Best Regards,
Ruggero
Best Regards, Ruggero --------------------------------------------- When applicable please mark the appropriate replies as CORRECT. This will help community members and Qlik Employees know which discussions have already been addressed and have a possible known solution. Please mark threads with a LIKE if the provided solution is helpful to the problem, but does not necessarily solve the indicated problem. You can mark multiple threads with LIKEs if you feel additional info is useful to others.
Solo por confirmar para los que no puedan/ no quieran actualizar aún, con este cambio está funcionando, más de 200 informes enviados por cada tarea sin errores.
