Filename:
[SENDER-ID]_targetgroup_audit_subscriptions_[targetgroupID]_[full|incremental].csv (respectively with individual date suffix)

Example:

"ts";"mail";"custID";"id";"sourceType"
"2012-07-07 05:33:13";"mail@mail.com";"CUSTOMERCODE";"8006";"4"

• ts [datetime]: timestamp of unsubscription
• mail [string]: e-mail address
• custID [string]: ID of customer
• id [int]: ID of user (promio internal)
• sourceType [int]: source of change:
  1: address generation
  3: manual addition (e.g. addition of a target group to the newsletter)
  4: promio.mail cronjob (automatic processes)
  5: promio.mail manual change (e.g. subscription / unsubscribe via newsletter manager)
  7: holiday block
  8: auto campaign
  9: hardbounce cleaner
  10: blacklist cleaner
  11: removal because of feedbackloop complaint
  13: SOAP
  15: quarantine cleaner
  17: list unsubscribe (unsubscribe via list unsubscribe link in email header)