How can I add a second sender address with different SMTP server in iOS?

I forward my university email address to my GMail account, so I don’t have my university IMAP set up as an account on my iPad (and I don’t want to, because then I’d receive those mails twice). Still, I want to send email using that address, via my university’s SMTP server. * Is there any way to add another sender address to an account and assign it a different SMTP server than the account’s default SMTP in the iPad’s email client? * If not, can you recommend another email client for the iPad that has this capability?