WordPress MU

When I try to sign up as a guest, I can't receive email. I asked my friend. They could not, either.

But when I go to the back as Admin to manually creat some blogs or users. The email will send to the email address right away.

Some one help me please. I will be crazy. I have been trying to figure it out for like 5 hours already.

Thanks for any reply.

Some one answer me please.
I am still waiting.

...
why no people answer me?
please...

First of all, try to be more patient when asking for help...

Second thing - what do you mean by 'sign up as a guest'? There's no such things as 'guest' in WPMU.

i mean, when i register. i can't receive the email.

- check your error logs
- check your mailserver logs

If you respond to your own post, those of us who trawl through will assume that someone has already answered the posters question.

You are not helping yourself by doing so.

Ps. Do what Andrea suggests and come back with any mail related errors.

pps. check your spam folders in your mail client.