Hi, I think I discovered a "Bug", or better: a protocol violation, when using delegate as a SMTP-to-SMTP gateway. The outgoing SMTP data stream appends the delegate version to the HELO command, which seems not to be valid. For example, after connect- ing to a mail relay, SMTP-delegate greets with: HELO my.host.name SMTP-DeleGate/7.5.3 and receives the error 500 Multiple parameters to HELO not allowed This was checked and confirmed for the largest german internet provider, T-online. Making appropriate changes on src/smtp.c fixed the problem. Please verify that you are still with RFC1123, Section 5.2.5. Attached to this mail find my smtp.c i used to fix the problem. Best regards Peter -- Competence is not only our motto - it's our business! --------------------------------------------------------------------- ITServ GmbH Peter Bauer Phone: ++49 (0)700 000000-0X Roentgenstrasse 11 -or- ++49 (0)700 ITSERV-MZ D-65474 Bischofsheim Fax: ++49 (0)700 000000-0X GERMANY -or- ++49 (0)700 ITSERV-FA Mail: pnucqbdyi-zzxei6do4btw.ml@delegate.org Mobile : ++49 (0)000 000000X ---------------------------------------------------------------------