Formal Emails in Spanish: 4 Traps That Reveal You're Not a Native

Every week a student sends me a polished business email and asks, "Why did my Spanish colleague answer so briefly?" Usually the grammar is fine. The problem is register. In a formal Spanish email, small choices — Estimado vs Hola, usted vs tú, Le agradezco vs Gracias — decide whether you sound like a serious professional or like someone who translated an English email word by word. Let's walk through the four traps I see most often.

Trap 1: The greeting that's too casual

English "Hi" travels badly. In Spanish, Hola is for people you already treat as tú. To a client, a professor, or anyone older, open with

or Estimada Dra. Ruiz — and if you don't know the name, . Note that Spanish keeps the article in the title: Sr., Sra., Srta., Dr., Dra. Dropping it looks careless.

Trap 2: Mixing tú and usted

This is the trap that betrays non-natives fastest. Pick one register and hold it to the last line. If you start with usted, every verb, pronoun, and possessive must follow: ¿Puede…?, Le agradezco…, su informe. Slipping into tú mid-email — ¿Puedes enviarme…? — reads as if you suddenly got too familiar.

Trap 3: The request that sounds like a demand

English "I want you to send me…" translates into Quiero que me envíe…, which in Spanish lands as bossy. Soften it with the conditional and gratitude: Le agradecería que me enviara… or ¿Sería tan amable de enviarme…?. The imperfect subjunctive — enviara, confirmara, indicara — is your politeness engine. It costs nothing and buys a lot of goodwill.