During configuration testing I attempted to email myself a test. It came back undeliverable because I didn't have my config correct yet. However now I do and I can't send myself another mail without an error because it seems zimbra held that address in memory and I've even stopped and restarted zimbra to no avail. How can I flush this address?

msg - Message not sent to any recipients because of these failed addresses: dond@foo.com
code - mail.SEND_FAILURE
method - ZmCsfeCommand.invoke
detail - soap:Sender
constructor -
function ZmCsfeException(msg, code, method, detail) {
if (arguments.length == 0) {
return;
}
AjxException.call(this, msg, code, method, detail);
}

toString -
function () {
return "ZmCsfeException";
}

dump -
function () {
return "AjxException: msg=" + this.msg + " code=" + this.code + " method=" + this.method + " detail=" + this.detail;
}