No I did end up changing my studentaid email to an SL alias, though I might wanna change it back if it keeps having issues. The issue is that icloud bounced the email, and SimpleLogin itself gave me an email each time one got bounced, with to go to simplelogin.com and see the bounced email. This is the title for each one
An email sent to your alias
redacted
@simplelogin.com from donotreply@studentaid.gov was bounced by your mailboxredacted
@icloud.com
That seems to only be available for Android.