Bayesian filter (content-based filter) |
| An anti-spam program that evaluates header and content of incoming email messages to determine the probability that it is spam. Bayesian filters assign point values to items that appear frequently in spam, such as the word "money-back guarantee". A message that accumulates too many points is either rejected as probable spam or delivered to a junk-mail folder. |
|
Blacklist (or blocklist, blackhole list) |
| A list developed by anyone receiving email, or processing email on its way to the recipient, or interested third-parties, that includes domains or IP addresses of any email senders suspected of sending spam. Many companies use blacklists to reject inbound email, either at the server level or before it reaches the recipient's in-box. |
|
Block |
| A refusal by an ISP or mail server to forward your email message to the recipient. Many ISPs block email from IP addresses or domains that have been reported to send spam or viruses or have content that violates email policy or spam filters. |
|
Bonded Sender |
| A private email-registration service, owned by email vendor Ironport, which allows bulk emailers who agree to follow stringent email practices, to post a monetary bond to bypass email filters of Bonded Sender clients. (The program enables bulk emailers to have their emails positively flagged as non-spam). |
|
Bounce |
| A message that doesn't get delivered promptly is said to have bounced. Emails can bounce for more than 30 reasons, such as when the inbox of a recipient is full, or the email address is no longer in use. |
|
Bounce handling |
| The process of dealing with the email that has bounced. Bounce handling is important for list maintenance, list integrity and delivery. |
|
Bounce message |
| When email delivery fails, the sending email transfer application sends a bounce message to the sender by email, and the server also records an error message in the mail logs. The messages indicate whether the failure was temporary or fatal, and describe the type of failure.
|
|
Bounce rate |
| In email marketing, the bounce rate relates to the delivery of your campaign. It tells you what percentage of addresses didn’t receive your message because it was returned by a recipient mail server. High bounce rates damage your reputation and delivery process.
|
|
Broadcast |
| The process of sending the same email message to multiple recipients. |
|
B-to-B (also B2B) |
| Business-to-business transactions take place between companies and wholesale buyers, while transactions targeting individuals are called B2C, or business-to-customer. |
|
B-to-C (also B2C) |
| Business-to-customer transactions take place between individuals and companies, while transactions targeting businesses are called B2B, or business-to-business.(also B2C). |
|
Bulk folder (junk folder) |
| A folder to which many mail clients send messages that appear to be from spammers or contain spam or are from a sender who is not in the recipient's address book or contact list. Some clients allow the recipient to override the system's settings and direct that mail from a suspect sender be sent directly to the inbox. E.g., Yahoo!Mail gives recipients a button marked Not Spam on every message in the bulk folder. See also suppression list. |
|