i cant send mail

Hello, who is your Mail Server, the part after the @ sign?

rogjohn.

I cant either.,using Airmac, with lion, the Mail Server is Bigpond. I get an error message that says"server has refused password. Incoming mail is ok

I can't either! My mail works fine on 10.7.5, but after mine update to 10.8.2,Mail can't send!

You may get a reply here but it's best to post a question in the column that it naturally belongs to ... in this case Mountain Lion. Mail questions are best posted in the OS column you are using. In any event as yours is a different question a new thread is needed. Mavis, you will note. is on 10.5.8 Leopard.

aol

I had this same problem with both my imac and mac book pro using hotmail via mac mail with bt as my internet provider. Suddenly 4 months ago out of nowhere i could receive emails but could not send them. I scoured all the threads followed all the fixes none of them worked. However I just phoned apple support and fixed it in a matter of minutes. I am SO happy. This is what the technician advised me:

Go to your apple icon and scroll down to system preferences. Then dependant on what machine you have it is different for my imac and mac book pro click on either air port/wifi then the advanced tab in the bottom right hand corner. Then click on the DNS tab. Hit the + sign on the left hand side and type in 8.8.8.8 then hit the + sign again on the left hand side it will create a new line underneathe and type 8.8.4.4 then hit okay on the bottom right and then hit apply, again on the bottom right. Then send a test email to check but it should be fixed.

Had to share this. Its been driving me mad for months.

Comcast