topic Re: Error: The SMTP server requires a secure connection or the client was not authenticated in QlikView

Error: The SMTP server requires a secure connection or the client was not authenticated

MK97 — Mon, 26 Jan 2026 18:19:17 GMT

Hello,

I'm trying to send test email from QMC and I get the following error:

The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.0 Must issue a STARTTLS command first. u25sm16635343wmm.5 - gsmtp

I am using:

smtp.gmail.com

Port: 587

Domain\MyID

Network password

Re: Error: The SMTP server requires a secure connection or the client was not authenticated

Lucas_Gatling — Mon, 20 Sep 2021 16:35:41 GMT

@MK97 Take a look at this link: https://stackoverflow.com/questions/17462628/the-server-response-was-5-7-0-must-issue-a-starttls-command-first-i16sm1806350

Re: Error: The SMTP server requires a secure connection or the client was not authenticated

Andre_Sostizzo — Mon, 27 Sep 2021 18:13:23 GMT

@MK97, it looks like the following may be needed:

Configuring Publisher to be able to make SSL connection to an SMTP email service