SquirrelMail 1.0.4 on https

Hello All,

I have two questions :
Q1.
I have installed SM 1.0.4 on my Redhat 7.2 box. I have recently shifted SM
on https (SSL)
https://mydomain.com/sm after shifting it's not allowing my users to login
it says "Incorrect User and Password".
When i use the Previous http://mydomain.com/sm SM it works fine.

Q2.
I have two domain with me domain1.com and domain2.com, i want to configure
them so that they will be able to send and receive mail through SM. How do i
configure Sm to do so? I have installed a Plug-in called VirtualHosting and
compatibility which is required.

I have Googled and also searched the archives but since i am Newbie to SM it
was all off the Head to me.If any one culd please help me or atleast put me
on the correct direction.

Any help would be appreciated.

Regards,
Tina.