关于邮件配置的问题，请教

1

在哪里配置邮件，就能添加用户的时候，添加用户成功后，给用户发送邮件呢

2

这里 https://manual-cn.seafile.com/config/sending_email.html

3

配置的126的邮箱，添加用户时提示配置邮件错误，logs日志如下：
2016-12-05 11:15:07,296 [ERROR] seahub.views.sysadmin:1357 user_add (535, ‘Error: authentication failed’)
2016-12-05 11:15:42,250 [INFO] root:292 runwsgiserver starting server with options:
{‘adminserve’: ‘Deprecated’,
‘autoreload’: False,
‘daemonize’: False,
‘host’: ‘0.0.0.0’,
‘pidfile’: None,
‘port’: ‘8000’,
‘server_group’: ‘www-data’,
‘server_name’: ‘localhost’,
‘server_user’: ‘www-data’,
‘servestaticdirs’: True,
‘ssl_certificate’: None,
‘ssl_private_key’: None,
‘staticserve’: False,
‘threads’: 10,
‘workdir’: None}