Using TLS - how do you know if your isp or mail host requires this?

[albi albinootje]

On 10/23/06, wade at wadesmart.com <wade at wadesmart.com> wrote:
> 10232006 1107 GMT-6
>
> Im reading the ubuntu wiki on Postfix. Between this and a few others, they are all
> talking about which security to use. How do I know what Im supposed to use?

the old-fashioned pop3 is by default sending out encrypted username+password
via port 110

there's however pop3-ssl (=pop3s) on port 995
imap-ssl on port 993 and a non-official port for smtp-auth is 465

you can try the following : telnet ISP-domain-name 993
it's however likely that they have special machines for email, like :
mail.ispname.net, smtp.ispname.net

but why don't you ask the helpdesk/support of your ISP what they offer ?