Warning and avoidance of sending email messages to unintended recipients

1. A method for avoiding transmission of an email to an unintended recipient, the method comprising:

creating an email within a data processing system connected to a network, wherein the email is addressed to one or more recipient(s) within the network;

accessing an electronic address book to determine if an entry in the electronic address book corresponding to a recipient among the one or more recipients indicates the recipient is a potential unintended recipient;

determining that the recipient has been previously designated as a potential unintended email recipient based on a reply email from the recipient to a previously-issued email, wherein the recipient provided a hot button feature within the reply email, and wherein the hot button feature triggered the electronic address book to auto designate an address entry created for the recipient within the electronic address book as an unintended recipient;

generating a specific notification prior to sending the email, indicating that the recipient potentially is an unintended recipient of the email in response to the determining that the recipient is a potential unintended email recipient with the auto designation as an unintended recipient; and

prompting, within the specific notification, for a removal of the unintended recipient as a recipient of the email.

2. The method according to claim 1 , further comprising creating the entry in response to a determination that a previous email sent to the recipient had been unintentionally addressed to the recipient, wherein said determination is triggered by receipt of the hot button feature within the reply email from the recipient.

3. The method according to claim 1 , wherein:

the method of claim 1 is performed by an email client executing within the data processing system; and

the notification is a message displayed on a display device within the data processing system.

4. The method according to claim 1 , further comprising the step of enabling the email to be addressed to one or more other recipients instead of or in addition to the recipient in response to the notification.

5. The method according to claim 1 , further comprising:

receiving a command resulting from user input within a reply email received at the data processing system, wherein the reply email is generated by the recipient in response to receiving an email that is addressed to the recipient, and the recipient is determined to not be an intended recipient of the email; and

creating an entry associated with the recipient in an electronic address book that indicates the recipient had previously been the unintended recipient of an email.

6. The method according to claim 5 , further comprising:

in response to receiving a sent email from a remote sender, determining when the sent email was correctly addressed to a recipient address of a user of the email client by (a) searching the sent email message and other addresses for information identifying the recipient address as being a correct or an incorrect address within the sent email and (b) receiving a selection of a hot button feature indicating that the email was not intended to be sent to the recipient address; and

when the recipient address is determined to be an incorrect address within the sent email:

generating a notification that the email was not intended to be received by the recipient; and

prompting for providing a reply to the remote sender indicating that the sent email was sent to an unintended recipient;

receiving a selection to provide a reply email with an indication that the sent email was sent to an unintended recipient identified as the recipient address; and

forwarding the reply email to the remote sender tagged with the hot button feature to enable the remote sender's email client to update an address book of the remote sender's email client with an indication that the recipient address corresponds to a recipient that is potentially an unintended recipient.