Solutions to routine problems
- I am still getting overloaded with spam.
- Mail is being delayed.
- Mail never arrives.
- A correspondent says their mail to me has started bouncing.
Spam Filters in Your Mail Client
How to Filter Spam in Your Mail Client
Network Operations maintains
instructions for setting up mail filters in various mail programs, as well as
offering training sessions about how to filter spam in your e-mail clients.
Greylisting
What is Whitelisting? How do I Add Someone to the Whitelist?
A whitelist is simply a database of email addresses that will never be delayed by
greylisting.
Each address is added to the database as soon as we confirm that it comes
from a legitimate mail host.
When legitimate mail from a number of different people on a particular mail server
is received, that mail host is automatically added to a whitelist, and mail is never
delayed from anyone using that mail host.
If mail to you from a particular person is being delayed, is never received, or is
bounced back to the sender, we can add them to the whitelist manually. Send e-mail
to postmaster@ucsd.edu, and tell us the
sender’s e-mail address and the approximate date and time when message was sent.
If they received an error message, it would be helpful for that to be sent to us
with the full headers displayed to aid in the search (See the documentation
for your email program for information how to view message headers).
Whitelisting Details
An "autowhitelist" entry (host+sender) is added to the database as soon as
mail delivery is retried within the given time window. Each time a message
from that relay+sender is processed, the timestamp on their record is updated.
The whitelist is updated both manually, and by an automated process
which examines the database for relay hosts that have sent us mail from
several senders in the same domain. We regard this as a sign that the relay
host is a legitimate mail gateway, so we add it to the whitelist and remove
all its autowhitelist entries, which are no longer needed.
If you can identify a sender’s email address that you believe you are
not receiving mail from, we can look through the logs and see whether they're
suitable for inclusion on the 'whitelist'.
Sharecase Presentation
Coming Soon!
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