[Fedora-suds-list] Undelivered Mail Returned to Sender

[Mail Delivery System]

This is the mail system at host smtp4.fastdnsnetwork.com.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to <postmaster>

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<sbi4833 at cal3.vsnl.net.in>: host mta3.vsnl.net[203.200.235.143] said: 550 5.1.1
    unknown or illegal alias: sbi4833 at cal3.vsnl.net.in (in reply to RCPT TO
    command)
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: text/rfc822-headers
Size: 1105 bytes
Desc: Undelivered Message Headers
Url : http://lists.fedoraproject.org/pipermail/suds/attachments/20100414/11313382/attachment.bin