all forms stop working after joomla updates

I have had this problem before with visforms but have no idea why. One of the forms is here: rideata.net/ata-careers/employment-application-driver-mechanic

I can fill it out and submit it getting a FORM SUBMITTED response on the page but nothing is sent to the email recipient of the form nor the CC or BCC recipients.

Hi,

what was the Joomla! version before the Joomla! Update. What is it now?
What is your Visforms version?

Regards,
Aicha

Joomla prev 3.8.5 now 3.8.6 visforms latest version 3.10.4

Hi,

thanks for this additional information. As far as I know, updating from Joomla! 3.8.5 to 3.8.6 should be no problem (non was reported so far and the release is out a while).

As Visforms actually only uses the default mailer of your website through Joomla!, this problem is problably not caused by Visforms in the first place, but more likely the mailer itself. I'm sorry, but I have no paticular idea what might solve the problem.

You wrote, that you have had this problem before, so how did you solve it in the past?

Regards,
Aicha