In order to edit information of a subscriber, go to "Edit Subscriber". This will open a search-mask where you may enter the email address of the subscriber you want to edit. There are two different options.
Simple search
Enter the term you want to search for. You may search for an explicit email address, a domain or part of an email address. When searching for parts of email addresses, "%"-characters have to be used as placeholders. For example, if you want to search for all subscribers with the domain "backclick.de", you have to enter "%backclick.de" as search string. If you do not enter anything, all your subscriber's addresses will be listed.
Fig. 7.3.2.1 - Search for a subscriber (simple search)
Enhanced search
Clicking the 
-button expands the searching mask allowing you to add further criteria to your search. For example, if you want to receive all subsribers of a certain mailing list, choose this list and click "search". All subscribers of the corresponding list will be displayed. You may limit the period of time to be considered. This period relates to the first subscription of a subscriber.
PLEASE NOTE: If you enter an entire email address and this address exists in the database, searching process will be very fast (<1 second). If you enter only parts of an email address, a more time consuming full-text search will be triggered which may take quite some time.
After the result is displayed you may click an email address in order to access the corresponding data set. On top of information already provided, you will see further important and interesting data.
Source of subscriber and list relation
The first table below the email address shows this subscriber's list relation. Time of subscription/unsubscription is displayed next to the corresponding mailing list.
Fig. 7.3.2.3 - Subscription/Unsubscription history
You as a sender have to be able to provide data about time and source of subscription as well as IP-address at that time. BACKCLICK supports you in doing so. Clicking the 
-button next to a mailing list displays the entire subscription and unsubscription history of this subscriber, including the so-called "referer" and IP-address. Even if a subscriber subscribes and unsubscribes multiple times, BACKCLICK will save all data.
Fig. 7.3.2.3.1 - Subscriber - Statistics
Clicking the IP address allows you to identify the registered owner using the "RIPE Whois Database". If the subscriber subscribed to your newsletter using a form on the internet, this website will show as the source of this Web page will also be displayed. To open the “RIPE Whois Database,” click on the so-called “referrer”
(here: import).
History of contact for every subscriber
Still more interesting information about every subscriber in your system is displayed in the second table. All e-mail traffic for this particular subscriber is listed here, so that you can easily find out whether or not their claim that they received one newsletter twice is true. All of the newsletters BACKCLICK has sent out to this e-mail server (SMTP-server) with no failure messages are displayed when you click on the -button. This overview shows a view of every personalized newsletter, as well as its subject and the time of sending. If you only see a newsletter once, you can be sure that BACKCLICK only sent it out once. Also listed here are the incoming e-mails that contain all of the e-mails that are connected to this subscriber. These will be listed if the address of an incoming e-mail may be related to a subscriber’s e-mail address, or if the e-mail address of a subscriber is found in the body of an incoming e-mail. Additionally you will find here the category of bounces in which the BACKCLICK-IMF put the returned e-mails. Please read Chapter “IMF” for more information on bounces.
Abb 7.3.2.3.2 - Statistik - versendete Newsletter
Abb. 7.3.2.3.3 - Statistik - empfangene Bounce-eMails
Subscriber’s data base database fields
Following these this information, you will see all of the existing data fields filled with the information you got about the subscriber. You may change them the information in these fields if needed, and save the changes by clicking on the "save"-button.
Abb. 7.3.2.4 - Abonnenten An- und Abmeldehistorie
To return to the “Subscriber Management” in your main menu, please click on the "back"-button.