Error sending email.

Hi. I am currently using SuiteCrm and had problems when sending emails.
It says “error sending email. Please contact your administrator”
Why does this occur? Can anyone help? Thank you so much!

Version 7.10.15

Sure, Definitely we will help with the decades of experience and expertise in CRM.
Request to you email us on,, what exactly you are facing issues in email integration, we have completed many projects with email integration.