[SMTP]error when sending mail

CZ
[SMTP] Pokus o připojení mail@doména.cz selhal. Toto může být způsobeno dočasnou nedostupností serveru nebo špatným nastavením. Chcete zkontrolovat nastavení?

EN translate:
[SMTP] connection attempt to mail@doména.cz failed. This can be caused by the temporary unavailability of the server or the wrong settings. Do you want check the settings?

CZ: Pokaždé, když chci odeslat mail, tak eMklient napíše tohle a mail se neodešle…
EN: Every time I want send a mail that eMclient write this and mail isn’t send…

Děkuji za řešení.
Thank you for a solution.

Dobry den,
ak sa mozem spytat, aky email server pouzivate? Pokusil by som sa nasimulovat dany problem.

Seznam, Gmail, případně školní mail běžící na unixu

Hello,
if problem with this error message persists, this points to some server-side issues. However, to be sure we will create more detailed communication logs. To do that, proceed as follows:

  1. Exit eM Client.
  2. Extract the file from http://www.emclient.com/tools/imaptra… to C:\Program Files\eM Client\ (or C:\Program Files (x86)\eM Client).
  3. Ensure directory c:\temp exists.
  4. Launch eM Client, let the error occur. Exit eM Client.
  5. Directory c:\temp should contain file MailClientTrace.log, please send this file.
  6. Remove file MailClient.exe.config from C:\Program Files\eM Client\ (or C:\Program Files (x86)\eM Client).

Best Regards

Where do I send that log file?

Send it to staron@emclient.com .

Will be there some issue with [SMTP] error?

Will be there some issue with [SMTP] error please?