problem to send email to idn domain names

[spilias]

Hello,

I have a problem to send email to idn domain names.

The error that I have is

Validation failed for: xxx@xxx [pid 111655 on line 754 of "/usr/share/psa-horde/imp/lib/Compose.php"]

Thanks

 

[abdi]

Hello Spilias,
Did you logon to webmail with the full email address and password or short username?

 

[spilias]

hello,

Full email address.

My email address is not an idn domain name.