I have no problem with using Outlook Express "Use same settings as my incoming mail server" to send email. But on Outlook, the only way to send email successfully is to use "Log on using...(enter user name and password)" Why is this so? Is this Outlook or Zimbra problem?
Also, I have type this command to allow both http and https web access: zmtlsctl both.
Does this affect whether POP has to use SSL too? Cause I notice that in the network edition, I have to use SSL to check email and it is very slow. How do I disable SSL at Zimbra Admin?