Start10m email redirection on MXPLAN 1 hosting (free hosting)

Background information: the start10m comes with one domain, one email, and 10M hosting
Perfect for testing and trying out the services or just having a simple domain name and email.

Don't mind having the one email address, but would like to have a few others so I can hide it from spammers. So was wondering about the email redirection service, I set up a some test email redirections called email1 email2 email3 email4 @mydomain.com to all redirect to myemail @mydomain.com, they all redirect to the single domain email address created on the email dashboard.

This workaround has given me the ability to create further alternative email addresses under the same domain that simply forward to the main domain email address, without even setting up an email address for each of the new emails on the domain. Obviously I can only receive email at the redirections, however email client software can be configured in such a way to give it an alias email address so it looks like it is coming from any email address you choose.

My question, is this fine to do, okay the system allows this to happen, but I can see it might get flagged at some point for maybe circumventing the email allowance, however if that was the case why allow for the this instance to occur in the first place? I don't intend on using all 1000 redirections that are available, that would be insane, however before I start using this service I would like some advice, thank you.

This might help someone else working on spam protecting their email in some way as an alternative solution with limited resources.