I changed the mail from xyz@gmail.com to avi@keperlnet.com in the mail config section on server config file but now i am not able to send the invitation to my team members

“mail”: {
“transport”: “SMTP”,
“options”: {
“service”: “Google”,
“host”: “smtp.gmail.com”,
“port”: 587,
“secure”: false,
“auth”: {
“user”: “aj@cointopcom”,
“pass”: “abcd efgh mnop ijkl”
}
}
},

previosly it was

“mail”: {
“transport”: “SMTP”,
“options”: {
“service”: “Gmail”,
“host”: “smtp.gmail.com”,
“port”: 587,
“secure”: false,
“auth”: {
“user”: “anuvjain@gmailcom”,
“pass”: “abcd efgh mnop ijkl”
}
}
},

with gmail domain mail i was able to send invitation to my team members but now not able to send any invitation and it is showing this error.

please verify your email settings

and when i try multiple times it shows this error
Failed to send invitation

Check your Mailgun configuration.

can any one help me i am new to ghost.

Do you have that email address set up with Google workspace? And are you using an app password from Google for it?