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Please note that the opinions of our user community do not necessarily reflect the opinions of the GreenNet Collective.
Re: your mailserver reject mail
GreenNet's greylisting system was greatly improved earlier in 2005 to minimise any delay in receiving genuine email from unknown sources. There are now only a very small number of providers that may still have problems forwarding email to GreenNet - we have found two district councils using obsolete software, and one ISP in West Africa. In each case we find, we cleanlist the problematic server as well as notifying its owner of the problem which is exposed not just by greylisting, but under a number of other possible situations.
The history of the most problematic broken software is complicated. InterMail was apparently called InterMail Post.Office at version 3. Possibly because other factors were involved, it appears the bug was not addressed until late in version 4. The rights for this were later sold from Openwave to Tenon [url]http://www.digitalpoint.com/lists/59168.html[/url].
There is no evidence the bug is in any software published since 2001, but migration from the obsolete proprietary software is difficult: [url]http://archives.neohapsis.com/archives/postfix/2002-07/2455.html[/url] . This is apparently why it is still in use in some places and dropping emails.