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From what I understand, it also matters how your domain exchange is configured. A badly configured exchange with no spf record can make it likely to be recorded as spam by another organization.<br />
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You may find this useful: <a href="http://mxtoolbox.com" rel="ugc">MXTOOLBOX</a> to track the health of your own domain.
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From what I understand, it also matters how your domain exchange is configured. A badly configured exchange with no spf record can make it likely to be recorded as spam by another organization.

You may find this useful: MXTOOLBOX [http://mxtoolbox.com] to track the health of your own domain.

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I understand that a domain is blacklisted because it is the origin of unwanted emails, but, on a high level, how is it communicated to the blacklist servers that the mail is unwanted and a blacklist status is needed?
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I understand that a domain is blacklisted because it is the origin of unwanted emails, but, on a high level, how is it communicated to the blacklist servers that the mail is unwanted and a blacklist status is needed?

How does a domain get blacklisted?

Various techniques are used to prevent email spam (unsolicited bulk email). No technique is a complete solution to the spam problem, and each has trade-offs between incorrectly rejecting legitimate email (false positives) vs. not rejecting all spam (false negatives) - and the associated costs in time and effort. Anti-spam techniques can be broken into four broad categories: those that require actions by individuals, those that can be automated by email administrators, those that can be automated by email senders and those employed by researchers and law enforcement officials.

AntiSpam

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

An email client, email reader or more formally mail user agent (MUA) is a computer program in the category of groupware environments used to access and manage a user's email. A web application that provides message management, composition, and reception functions may internally act as an email client; as a whole, it is commonly referred to as webmail. Likewise, email client may be referred to a piece of computer hardware or software whose primary or most visible role is to work as an email client. Email clients can also have other systems, like calendars, notes and contact managers.