Trying to make contact with Sharon Gilmour nee Daniels

We recently received a message via our family tree on TribalPages:
http://hayesstw.tribalpages.com/

to the effect that a Sharon Gilmour had visited the site and left a message saying the she was a granddaughter of George Emmett Brennan. We sent her an e-mail message, but unfortunately it bounced as follows:

On 9 Jan 2012 at 6:40, Mail Delivery System wrote:

> This is the mail system at host wblv-ip-mesg-1-3.saix.net.
> > I’m sorry to have to inform you that your message could not
> be delivered to one or more recipients. It’s attached below.
> > For further assistance, please send mail to postmaster.
> > If you do so, please include this problem report. You can
> delete your own text from the attached returned message.
> > The mail system
> > : host mx3.hotmail.com[65.54.188.94] said: 550
> Requested action not taken: mailbox unavailable (in reply to RCPT TO
> command)

So now we have no way of making contact. I’m just hoping that Sharon herself, or someone who knows her, may see this to let her know that we tried to get in touch, but failed.

George Emmett Brennan (1905-1961) married Maude Florence Beatrice Crighton (1905-?) in 1928, possibly in Johannesburg. We visited her on 6 April 1986, when she was living in an old age home in Bertrams, Johannesburg, with her sister-in-law “Baby” Crighton.