This study explores whether English-dominant (ED) speakers and speakers of English as a foreign language (EFL) perceive the same degrees of formality in combinations of (in)formal greetings (Hi/Dear) and address forms (informal First Name/Ms. Last Name) with (in)formal nouns, verbs, and adjectives (Latinate/Germanic). It also explores which of these variants the two groups perceive as salient in communicating formality. Twenty-five ED undergraduates in Canada and 27 EFL undergraduates in Slovakia rated the formality of 20 sentence-length examples of business email correspondence and identified features that were the primary basis for their formality rating. Distributions of 11 of the formality ratings were statistically significantly different in the two groups (with most effect sizes ranging from small to medium), and trends in the reports of salient features suggested that the EFL speakers focused on the formality of address forms more frequently than did the ED speakers. The findings are discussed in relation to infelicitous interlingual transfer and strategies for developing pragmatic competence.