The IMAP server %S 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 freastalaí IMAP %S 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.