Toot by Bri😻Bri😻 (dragonscave.space)

Spam and DDOS implications, and, no, there are 0 reputable providers that will let you send via SMTP at this point. You have a couple ways around this. The first is to file a ticket, and the second is to use something like Mailgun to handle your SMTP traffic. Depending on how much mail you plan to send, it might be easier to use Mailgun or similar.