P.S. stands for postscript, from the Latin post scriptum ("written after"). It marks a short note added after the main body and signature of a message, used to add an afterthought, emphasis, or a final call to action.
Where P.S. Comes From
The abbreviation predates email by centuries: in handwritten letters, a postscript was anything added below the signature, often because the writer forgot to include it earlier. In modern email it is rarely a true afterthought. Marketers add a P.S. deliberately because it draws the eye and is one of the most-read lines in a message.
How P.S. Is Used in Email
A P.S. line is a high-visibility spot. Readers who skim often jump from the opening to the P.S., so it is a strong place to restate the main offer, add urgency, or repeat a link. Variants like "P.P.S." (a second postscript) exist but are used sparingly. Keep it to one short, scannable sentence and align it with the email's primary call to action.
P.S. and Topol
A well-placed P.S. can lift clicks on your main link or button. Design emails with clear, clickable calls to action using Topol, start free at Topol signup, or browse more terms in the Topol glossary.