登陆邮箱和退出邮箱用英语怎么说

sign in
sign out

log in
log out

login【电脑】登录,进入系统
Logout【电脑】 注销,退出

登陆邮箱 login the mailbox
退出邮箱 Logout the mailbox

分别有几种说法
登陆邮箱：
Log into the email
Log onto the email
Sign on the email
Sign in the email
退出邮箱：
Log out from the email
Log off the email

登陆邮箱log in the mail box
退出邮箱log out the mail box