Forum Discussion
I verified I'm having this same issue. is the VRFY a new thing that it does in 13.0?
Nevermind: I found the bug: https://support.f5.com/kb/en-us/products/big-ip_ltm/releasenotes/related/relnote-supplement-hotfix-bigip-13-0-0.htmlA652146-1
652146-1 : Email agent does not send email if the remote server does not provide a 200 OK response to VRFY request. Component: Access Policy Manager
Symptoms: Access Policy Email Agent does not send email if the remote server does not provide a 200 OK response to VRFY request.
Conditions: The version of CURL included in 13.0.0 uses VRFY requests to confirm recipients are valid before sending mail. Many servers consider VRFY a potential leak of information and will respond "252 - Not verified" and the BIG-IP system will not send the message.
Impact: The Access Policy Email Agent does not send mail messages or log an error about mail not being sent.
Workaround: None.