Send email from external account

[binaria]

Hi all,

I have a problem with a new installed zimbra on my Centos Distro.

I´ve got a local domain configured where i can send and receive emails correctly.

When i add external email accounts I can receive, but when I try to send mails using one of those external mail accounts I get an error message window:

msg: n is null
fileName: http://192.168.1.210/zimbra/js/Start...v=100616220458
lineNumber: 2349
message: n is null
name: TypeError

The same thing happens once i have the from/subject/body window and i click on another tab of the web interface.

Any idea to fix this ?

Thanks in advance.

P.D. I´m using the Open Source version