{"id":2113,"date":"2026-11-10T12:26:01","date_gmt":"2026-11-10T11:26:01","guid":{"rendered":"https:\/\/www.mailfino.com\/?p=2113"},"modified":"2026-11-10T13:54:02","modified_gmt":"2026-11-10T12:54:02","slug":"glossar-betreffzeile","status":"publish","type":"post","link":"https:\/\/www.mailfino.com\/en\/glossar-betreffzeile\/","title":{"rendered":"What is an email subject line?"},"content":{"rendered":"

The subject line tells readers what an email is about. In the inbox they usually see it alongside the sender and, depending on their email client, preview text. A clear subject helps them understand the message before opening it.<\/p>\n\n\n\n

\"An<\/figure>\n\n\n\n

What makes a subject line clear?<\/h2>\n\n\n\n

Put the most important information first. How much of the subject remains visible depends on the device, email client, and inbox view. Check it in a real inbox, including on a phone. A word like \u201cfree\u201d can accurately describe a genuinely free offer. One word alone does not tell you how a spam filter will classify the email.<\/p>\n\n\n\n

Two subjects for the same newsletter<\/h2>\n\n\n\n

\u201cImportant news for you\u201d leaves readers guessing. \u201cNewsletter planning workshop on May 18\u201d names the topic and date. If you compare two variants, choose your metric first. A recorded open alone does not establish that someone read the email.<\/p>\n\n\n\n

Further reading<\/h2>\n\n\n\n