The email address you entered is not valid because it ended unexpectedly. This probably means you have used an escaping type character like a '\\ 'as the last character in your email address.
Níl an seoladh ríomhphoist a d' iontráil tú bailí toisc gur tháinig sé chun deiridh gan súil leis. Is dócha gur úsáid tú carachtar éalúcháin cosúil le\\ mar an carachtar deiridh i do sheoladh ríomhphoist.