i want to send a sample,but failed

Avast Free Antivirus / Premium Security
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which email address should i send to? i can’t use outlook
http://forum.avast.com/Themes/ALWIL_classic/images/bbc/email.gif
:-[

i don’t know how to solve the error

send failed——

由于服务器拒绝接受发件人的电子邮件地址，这封邮件无法发送。发件人的电子邮件地址是“***@126.com”。 主题 ‘avast!’, 帐户: ‘pop.126.com’, 服务器: ‘smtp.126.com’, 协议: SMTP, 服务器响应: ‘553 authentication is required,smtp4,wKjSji7AoA1O1ktEmilMAQ==.44001S2’, 端口: 25, 安全(SSL): 否, 服务器错误: 553, 错误号: 0x800CCC78

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Send an email with the file (false positive or infected) to: virus@avast.com
You can zip and password the files… Inform a link to this thread and the password used.
You can send the files to Chest and, from there, resend to Alwil for analysis.

You can use Alwil FTP server as a second way to transfer only big files. Upload them to ftp://ftp.avast.com/incoming (please, note that you won’t have READ access to the ftp server, just write - so you won’t even be able to see what you’ve just uploaded).

Thanks.

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