Hi all, up until recently, I've been doing my mailing off-line by letting elm put my mail in /var/spool/mqueue until I make connection with my ISP, at which time I run sendmail using -q -v. The sysamins recently upgraded to the newest sendmail version which is stricter about who it accepts mail from (an anti spam measure). If the machine sending the mail is not found by the DNS, the mail is bounced back. Since my box is a standalone system at home, it isn't recognized and all af my outgoing mail has been bounced back with a 'Data format error' message. Is there any way to get elm or sendmail on my end to write the headers in such a way that they are known to the mail server? Currently I have the SmartHost option set to the mail server where my mail is recieved. The sysadmins advised me to set the From: line in the elmheaders file to my own mail address, which didn't work. They also told me to get rid of the masquerade option (which was set to the mail server name when this all started). This also had no effect. The following is what the header in the mailqueue looks like locally: V2 T896422628 K0 N0 P30315 I3/66/9936 Mhost map: lookup (tu-clausthal.de): deferred Fb $_harold@localhost Sharold RPFD:[EMAIL PROTECTED] H?P?Return-Path: <harold> HReceived: (from harold@localhost) by tigger.chris.org (8.8.5/8.8.5) id IAA00241 for [EMAIL PROTECTED]; Fri, 29 May 1998 08:17:08 +02 00 H?x?Full-Name: Harold Weiss-Wallrath H?M?Message-Id: <[EMAIL PROTECTED]> HSubject: test HTo: [EMAIL PROTECTED] HDate: Fri, 29 May 1998 08:17:07 +0200 (MET DST) HReply-To: [EMAIL PROTECTED] HFrom: Harold Weiss-Wallrath <[EMAIL PROTECTED]> HContent-Type: text HContent-Length: 48 I think (I'm no expert here) that the problem resides in the HRecieved: entry. The machine tigger.chris.org (I had to give it a name at install time, so I pulled something out of my hat) is my home box and is only connected occasionally by a dynamic IP address. I have to work this way to keep the otherwise high telephone costs as low as possible due to being on a typical students budget. Any help would be greatly appreciated. Harold -- PLEASE read the Red Hat FAQ, Tips, Errata and the MAILING LIST ARCHIVES! http://www.redhat.com/RedHat-FAQ /RedHat-Errata /RedHat-Tips /mailing-lists To unsubscribe: mail [EMAIL PROTECTED] with "unsubscribe" as the Subject.