这是 sendmail.ini 文件，现在需要更改
# Example for a user configuration file
# Set default values for all following accounts.
defaults
logfile "\xampp\sendmail\sendmail.log"
# Mercury
account Mercury
host localhost
from postmaster@localhost
auth off
# A freemail service example
account gmail
tls on
tls_certcheck off
host smtp.gmail.com
from ****@gmail.com
auth on
user ****@gmail.com
password *******
# Set a default account
account default : Mercury
答案1
需要在配置中添加[端口 587]1
account Gmail
tls on
port 587
tls_certcheck off
host smtp.gmail.com
from ***@gmail.com
auth on
user ***@gmail.com
password mygmailpassword
# Set a default account
account default : Gmail