CiviCRM Community Forums (archive)

This is a hint for people who find they occasionally get Unsubscribe and OptOut requests failures in their logs, that look like ...

Nov 24 08:04:57  [ info ] $Fatal Error Details = Array
(
    [ message ] => Missing input parameters
    [ code ] =>
)

Nov 24 08:04:57  [ info ] $backTrace = #0 /sites/all/modules/civicrm/CRM/Core/Error.php(300): CRM_Core_Error::backtrace("backTrace", TRUE)
#1 /sites/all/modules/civicrm/CRM/Mailing/Page/Common.php(45): CRM_Core_Error::fatal("Missing input parameters")
#2 /sites/all/modules/civicrm/CRM/Mailing/Page/Optout.php(38): CRM_Mailing_Page_Common->run()
#3 /sites/all/modules/civicrm/CRM/Core/Invoke.php(228): CRM_Mailing_Page_Optout->run((Array:3), NULL)
#4 /sites/all/modules/civicrm/drupal/civicrm.module(500): CRM_Core_Invoke::invoke((Array:3))
#5 [ internal function ](): civicrm_invoke("mailing", "optout")
#6 /includes/menu.inc(516): call_user_func_array("civicrm_invoke", (Array:2))
#7 /index.php(21): menu_execute_active_handler()
#8 {main}

When I check the webserver logs, the requests are coming from IPs that belong to services like "Google Translate" and "Amazon". The URL being requested has no query parameters (eg, "GET /civicrm/mailing/unsubscribe HTTP/1.0").

I suspect what is happening is that when recipients of our email use a web-based email client, occasionally those clients follow the links but ignore the arguments. It bothered me that perhaps these messages indicated people were having a bad experience with our site, but I think these are OK.