This POP3 server does not seem to support encrypted passwords. If you just set up the account, please try changing to 'Password, transmitted insecurely' as the 'Authentication method' in the 'Account Settings | Server settings'. If it used to work and now suddenly fails, this is a common scenario how someone could steal your password.
Dealraíonn sé nach dtacaíonn an freastalaí POP3 seo le focail fhaire chriptithe. Má tá tú go díreach tar éis an cuntas seo a shocrú, bain triail as 'Focal faire, seolta go neamhshlán' mar 'Modh fíordheimhnithe' i 'Socruithe an Chuntais | Socruithe an fhreastalaí'. Má bhí sé ag obair roimhe seo ach níl anois, b'fhéidir go bhfuil duine éigin ag iarraidh d'fhocal faire a ghoid.