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How Is Mail Tagged as SPAM?
The Following technical requirements apply to the
delivery of Internet e-mail through CWWIS/Tomorrow River
e-mail network.
CWWIS/Tomorrow River mail servers:
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will not accept connections from unsecured systems.
These include open relays, open proxies, or any other
system that has been determined to be available for
unauthorized use.
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will not accept connections from known spam sources.
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will not accept connections from systems that use
dynamically assigned or residential IP addresses.
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will refuse messages without a valid or properly
formatted 'mail from' address.
...will
refuse messages without a subject
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will refuse messages sent through an http proxy.
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may refuse connections from systems that do not accept
bounce messages.
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may refuse connections from systems that, through their
actions, cause a denial of service.
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will refuse connections from any IP address that does
not have reverse DNS (PTR record) and may refuse
connections from hosts without a matching DNS A record.
See
RFC 1912, section 2.1.
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will not accept connections from systems that do not
send a HELO with a valid hostname or domain name.
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will refuse bounce messages (i.e. messages with null
sender) to more than one recipient. See
RFC 2821.
Additionally, incoming messages must pass anti-spam
checking based on the threshold set individually by
CWWIS/Tomorrow River customers.
How do I know if I am
getting all my mail?
All
mail that meets the above criteria is either
placed in the MAIN mailbox or the SPAM mailbox.
What can I do if mail
I want to get is sent to the SPAM Box?
You
can setup filters (rules) that will allow mail that is
tagged as spam to be moved to you MAIN mailbox.
Directions for creating the rules is here
Support/Creating _Rules_imail.htm
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