New perch user and GMAIL email

Hello, when we create a new account with an email @gmail.com, we don't receive the email to setup the password. I checked in debug mode the page to test email, and it's wrote : The email has been successfully sent (see below). Everything seems good (even the email server log) but we don't have email (I checked spam folder).

Debug Message - Perch Runway 3.0.8
[1] SELECT u.*, r.* FROM perch2_users u, perch2_user_roles r WHERE u.roleID=r.roleID AND u.userEnabled=1 AND u.userID=14 AND u.userHash='hash' LIMIT 1
UPDATE perch2_users SET userHash='hash' WHERE userID='14'
[52] SELECT p.privKey FROM perch2_user_privileges p
[33] SELECT settingID, settingValue, userID FROM perch2_settings WHERE userID=14 OR userID=0 ORDER BY userID ASC
[9] SELECT itemValue FROM perch2_menu_items WHERE itemType='app'
Using email template: C:\inetpub\website.com\admin\core\emails\settings-test.html (html)
Building message with Dollar template
Sent email: "Email settings test message" to name@gmail.com
Setting alert: The email has been successfully sent. (success)
[1] SELECT * FROM perch2_menu_items WHERE itemActive=1 AND itemType='menu' AND parentID=0 ORDER BY itemOrder ASC LIMIT 0, 1
[4] SELECT mi.*, p.privKey FROM perch2_menu_items mi LEFT JOIN perch2_user_privileges p ON mi.privID=p.privID WHERE mi.itemActive=1 AND mi.parentID=1 ORDER BY mi.itemOrder ASC
[1] SELECT itemTitle FROM perch2_menu_items WHERE itemType='app' AND itemValue='settings' LIMIT 1
[1] SELECT * FROM perch2_menu_items WHERE itemActive=1 AND itemType='menu' AND parentID=0 ORDER BY itemOrder ASC LIMIT 1, 10
[2] SELECT mi.*, p.privKey FROM perch2_menu_items mi LEFT JOIN perch2_user_privileges p ON mi.privID=p.privID WHERE mi.itemActive=1 AND mi.parentID=2 ORDER BY mi.itemOrder ASC
File: \core\settings\modes\email.post.php
Queries: 11
Memory: 3.2274

any idea?