Imagine I'm doing research on my own, and studying at a university. I publish this research, get accepted, and now I have to provide my affiliation. I have no problems of course using my university and the department I'm studying for, and in fact, I want to. However, I've read (on this site) that using my personal @gmail.com email looks unprofessional even if you provide the university as affiliation. I have a student email but looks quite awful like: lmatteis.123112311@studenti.uniroma1.it - where the number is my student code number.
Is that ugly email better than a personal @gmail.com email?
Another option would be that I go talk to a professor, show that the paper got accepted and ask them whether they can give me a quick affiliation; provide me with the email... but then I'd probably need to add the professor as a co-author as well, which I guess is also fine? This option would however take much longer. But maybe a good way to build connections with professors in the department.
Thoughts?
EDIT
The question that appears linked is a different question. It talks about "rotting emails" and the possibility of using your personal email to avoid that. My question is regarding what email I should provide for a research that I want my university to be affiliated with, although I haven't been officially given any email by the university (apart from my student email).