Thanks Ralf for your input. A little more additional info:
AxCrypt is at it’s core, a password based file-encryption software. A file is always openable with the password used by the original encrypting person.
So, if you encrypt a file, share it with a different e-mail (that you control), sign in to that e-mail, download the file and open it in a situation where AxCrypt is running and you’re signed in with the password that was originally used – you can open it.
In your likely scenario, it’s even more easy – since you’re sending it to your self, of course you can open it if you’re signed in to AxCrypt just as Ralf states – it’s still the same file (or rather an identical copy). Just because you share it, does not mean you cannot still open it yourself.