Hi, this time it seems to be 'in topic' I justb wrote to the security list my mail about accessing a Win2k-pc (subj. Win2k within a Linux-Lan) and I received it allready back from the list, that's ok! BUT at the same time I got an infromation that exactly this mail (abs. same content) could not have been delivered to another address martens@prointernet.de: Final-Recipient: rfc822;d.martens@prointernet.de Action: failed Status: 5.2.1 X-Display-Name: Dominik Martens It looks as if copies of my mails are automatically sent to a second address!! Can that be has anybody an idea, what has happend? It is from a new pc with newly installed SuSE 8.2 Carl
Hi, Maybe ... Did you use the "answer all" button ... In that case it will go to the list, and to the originaly sender M -----Ursprüngliche Nachricht----- Von: Gooly [mailto:gooly@gmx.at] Gesendet: Dienstag, 1. Juli 2003 11:00 An: suse-security@suse.com Betreff: [suse-security] 2.nd mail Hi, this time it seems to be 'in topic' I justb wrote to the security list my mail about accessing a Win2k-pc (subj. Win2k within a Linux-Lan) and I received it allready back from the list, that's ok! BUT at the same time I got an infromation that exactly this mail (abs. same content) could not have been delivered to another address martens@prointernet.de: Final-Recipient: rfc822;d.martens@prointernet.de Action: failed Status: 5.2.1 X-Display-Name: Dominik Martens It looks as if copies of my mails are automatically sent to a second address!! Can that be has anybody an idea, what has happend? It is from a new pc with newly installed SuSE 8.2 Carl -- Check the headers for your unsubscription address For additional commands, e-mail: suse-security-help@suse.com Security-related bug reports go to security@suse.de, not here --- Eingehende Mail ist zertifiziert virenfrei. Überprüft durch AVG Antivirus System (http://www.grisoft.com/de). Version: 6.0.493 / Virendatenbank: 292 - Erstellungsdatum: 25.06.2003 --- Ausgehende Mail ist zertifiziert virenfrei. Überprüft durch AVG Antivirus System (http://www.grisoft.com/de). Version: 6.0.493 / Virendatenbank: 292 - Erstellungsdatum: 25.06.2003
It looks as if copies of my mails are automatically sent to a second address!! Can that be has anybody an idea, what has happend? Ever wondered how Mailinglists work? That behaviour is perfectly correct, since you send the mail to the list and
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Tuesday 01 July 2003 11:00, Gooly wrote: the list "forwards" the mail to all who are on the list... Cheers, Arndt PS: look at the sender of the mail I sent to the list and which you received now... what sender address is it... so if something doesn't work, who will receive notification...? - -- Arndt Faulhaber mailto:arndt.faulhaber@diagnosdata.com gpg-pubkey: http://www.rzuser.uni-heidelberg.de/~afaulhab/arndt.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) iD4DBQE/AVaGEin8GFiSP10RAvOBAJY8BzBWF8ystnPN1Y0cjDOthFvPAJ99AyGc oJFZ6H1slTR+SOWVgDMYfQ== =47kF -----END PGP SIGNATURE-----
Hi,
Quoting Gooly
BUT at the same time I got an infromation that exactly this mail (abs. same content) could not have been delivered to another address martens@prointernet.de: Final-Recipient: rfc822;d.martens@prointernet.de Action: failed Status: 5.2.1 X-Display-Name: Dominik Martens It looks as if copies of my mails are automatically sent to a second address!!
Looks like the receiving MTA is at fault. Explanation: There are two sets of address fields in an email, the envelope and the headers. When you sent the mail the 'To' fields in both were suse- security@suse.com and the 'From' fields were gooly@gmx.at. When it gets redistributed by the SuSE list server, these are changed. The header fields remain untouched but the envelope changes as follows 'To' becomes the list-members-address and 'From' becomes suse-security-return- NNNNNN-MMMMM=OOOOOOOOOOO@suse.com. NNNNN is the article number MMMM is the user part of the email address and OOOOOO is the server. So your mail should have gone to this user with an envelope of:- To d.martens@prointernet.de
From suse-security-return-19029-d.martens=prointernet.de@suse.com
The From address is like this so the list server can detect errors. Other list server software uses different techniques but the end result is the same. When an error is encountered the MTA should take the envelope address in preference to the Header fields but in this case it appears to have done it wrong. It seems it sent you the error instead of the list. The down side of this is that users get unnecessary mails and the list server software never learns that d.martens@prointernet.de is an invalid address. HTH John
participants (4)
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Arndt Faulhaber
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Gooly
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John Trickey
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Michael Haunzwickl