Topic: AOL SMTP Server
AOL SMTP Server will have an address (or address) that can be set by the mail client or the application you use, typically in the format smtp.serveraddress.com. You can usually find your SMTP email server address in the "Account" or "Settings" section of your mail client.
AOL email settings are configured on the iPhone outgoing mail server.
You can achieve this by using PHP's mail() function or similar methods in other techniques, but these methods are not recommended as you may encounter some transferability issues here. Particularly when you have a shared web server and the server's IP may already be on the spam blacklist, it will send your email to the recipient's spam folder, thus conflicting with delivery. Therefore, it is not a recommended method for sending transactional emails.