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Tue, 21 Mar 2006 10:45:53 -0500 |
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At 10:20 3/21/2006 Tuesday, Michael DeGregory wrote:
>Hi Pete,
>
>I'm sorry I'm not sure what you mean by the "LISTSERV DISTRIBUTE BACKBONE
>host is blocked".
>How does this get blocked? and how do we unblock it? The distribute jobs
>work fine however, the probes are failing.
OK, I missed the "probes" part. Sri for the confusion.
I doubt that the LISTSERV DISTRIBUTE BACKBONE is used for probing. [Though IF the L.D.B. is being used for the regular list mail, and the probes are not, that could be a problem with host's site LISTSERV mailer used when doing the probes to user's site that has blacklisted that IP address).
As far as the probes failing, I guess one would need to know more info ... maybe the target system doesn't like the RFC821 MAIL FROM semantic (and obfuscated RFC822 userid and listname, as I recall).
The LDB is a store n' forward LISTSERV-to-LISTSERV ("peer to peer") mail/merge/explode mechanism whose genesis was back in BitNet when bandwidth was at a premium and distributed CPUs cycles could be used to minimize that.
/Pete
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