Rejected after DATA
I am using anti-spam solution and I got some e-mails rejected after data:
2005-08-12 09:56:49 1E3Z5c-0003HJ-Rk H=(EXAME) [200.138.40.82] F=<ggomes@xzxxzx.com.br> rejected after DATA: syntax error in 'Sender:' header when scanning for sender: missing or malformed local part in "LPT4 - Suporte <>"
What is this error ? How can I tell customer to have it fixed ?
He is using a special program to send his e-mails.
Thank you.
