Can not get outgoing messages to work despite 3 hrs Apple technician!!!!!!!

Question

I have now worked another 4 hours on this issue.And had help from India as well.
After 3 hours with India technician the issue could still not be solved.I now know that the below settings are correct.I have a case number and tonight spend another 4 hours but no outgoing messages!!!! Except sometimes using one account only but I have 10!!
Maybe I have to give up and accept that the mail is never going to work.I now use a windows computer for my mail. UUE unbelievable unacceptable error from Apple
Result all my accounts read the messages.
The accounts are yahoo/xtra New Zealand
The G mail has an own outgoing server and in connection doctor the light is shown green.
If I can send I do not know yet.
Now for all yahoo xtra accounts I use the same server.
The providers instruction for a NEW account I established is:
-Incoming Mail (POP3) Server pop3.xtra.co.nz
Use SSL,port 995
-Outgoing Mail (SMTP) Server: send.xtra.co.nz
Enable SSL,port: 465 and enable SMTP server authentication
Print this page for your record.
My conclusion is despite upgrading to Snow Leopard 6.1 where was promised that mail issues had been solved the result is zero and I am sure it is not the providers fault.
I will give here again the link in Google and hope somebody will know what is at hand here.
I was told that some guy in Apple care is supposed to know???
I do not have Apple care.I have spend a lot of time and hope somebody may stand up to get it really sorted out My link found in Google:from which I started.
http://reviews.cnet.com/8301-13727_7-10333904-263.html
Too bad for words this issue UUE from Apple!!!! Clogz14

Answer 1

I received a complaint that my last post was not so clear and I have updated this post here.
I have now configured Thunderbird and after help with setting up by my provider Yahoo/ Xtra. Thank you for your telephone help of 3 hours from Philippines today Yahoo/ Xtra. It all works fine now with Thunderbird.
I now receive and can send E-mails from and for all 10 sub accounts.Today I received an Apple survey message to valuate my experiences.The case number that was given and is not solved at all is
136901000 The very good Apple technicians name is SHIVARAM.It is not his fault that the issue could not be solved.A shame the Apple survey indicated there would not be any follow up of the issue.!!! I just had to phone again!!!
It shows the arrogance that has entered the Apple organization.
Imagine how many people are loosing time with this issue in my case about 2 days!!! Just after installation of a product they call Snow Leopard I payed 59 $ for !!! It should actually have been called Slow Leopard ! only one letter different.!!! Just as my computer only one program failing!!!
Apple version 4.0 E-mail Program.See how they are going to fix this!!!!
So New Zealand needs to talk to India-Phillipines-to get his 59$ purchased program working.!
Ridicules 6 hours now yes it is all for free 0800 numbers .Still.!!! In Europe companies let the clients pay!!
Clogz14