Ok so there was a typo on de password and i changed it.
Now I have another issue :
Email address for mail test? ('n' to skip) [info@kheyed.com]:
Sending mail to info@kheyed.com. . .
Testing sending to info@kheyed.com using mail.infomaniak.com:587, username:info@kheyed.com with plain auth.
SMTP server connection successful.
Sending to info@kheyed.com. . .
Mail was not sent.
Reason: 550 5.7.1 Sender mismatch
My login and password is now alright but I can’t find the issue