forgot a few files in last push.

signup/_probe.php

@@ -0,0 +1,9 @@
+<?php
+$cmd='/usr/bin/sendmail.postfix -t -i -f signup@tilde.club';
+$ds=[0=>['pipe','r'],1=>['pipe','w'],2=>['pipe','w']];
+$p=proc_open($cmd,$ds,$pipes);
+fwrite($pipes[0],"To: root@tilde.club\r\nSubject: proc_open test\r\n\r\nhi\r\n"); fclose($pipes[0]);
+$stdout=stream_get_contents($pipes[1]); fclose($pipes[1]);
+$stderr=stream_get_contents($pipes[2]); fclose($pipes[2]);
+$rc=proc_close($p);
+var_dump(['rc'=>$rc,'stderr'=>$stderr,'sendmail_path'=>ini_get('sendmail_path')]);

signup/composer.json

@@ -0,0 +1,5 @@
+{
+    "require": {
+        "pear/net_dns2": "^1.5"
+    }
+}

signup/composer.lock

@@ -0,0 +1,70 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
+        "This file is @generated automatically"
+    ],
+    "content-hash": "013e57ab3ff38d936fd23c522b9d5268",
+    "packages": [
+        {
+            "name": "pear/net_dns2",
+            "version": "v1.5.5",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/mikepultz/netdns2.git",
+                "reference": "ea39ef5a97d5c2b9893a8c35af7b5fd5b0e40bc9"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/mikepultz/netdns2/zipball/ea39ef5a97d5c2b9893a8c35af7b5fd5b0e40bc9",
+                "reference": "ea39ef5a97d5c2b9893a8c35af7b5fd5b0e40bc9",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^9"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-0": {
+                    "Net_DNS2": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Mike Pultz",
+                    "email": "mike@mikepultz.com",
+                    "homepage": "https://mikepultz.com/",
+                    "role": "lead"
+                }
+            ],
+            "description": "Native PHP DNS Resolver and Updater Library",
+            "homepage": "https://netdns2.com/",
+            "keywords": [
+                "PEAR",
+                "dns",
+                "network"
+            ],
+            "support": {
+                "issues": "https://github.com/mikepultz/netdns2/issues",
+                "source": "https://github.com/mikepultz/netdns2"
+            },
+            "time": "2025-05-17T20:56:28+00:00"
+        }
+    ],
+    "packages-dev": [],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": {},
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": {},
+    "platform-dev": {},
+    "plugin-api-version": "2.6.0"
+}