Email Warm-up

Email Warm-up is a professional term in foreign trade digital marketing that refers to the use of a series of technical measures and sending strategies to gradually improve the sender reputation of a new email address or new domain, so that it is regarded as a trustworthy sender by target email service providers (such as Gmail and Outlook). Its core purpose is to prevent marketing emails from being classified as spam and to ensure that development letters, quotations, and similar messages reach the customer's inbox. Use cases include: newly created corporate email accounts, changing email service providers, recovery after a domain has been blacklisted, or reactivating an email account that has not been used for a long time. Precautions: warm-up must be done gradually, initially sending only a small number of emails per day (such as 10-20), then gradually increasing to the normal volume; prioritize sending to highly engaged contacts and encourage replies and marking as 'not spam'; avoid spam trigger words, large numbers of images, or attachments. The difference from 'email mass sending' is that mass sending is a bulk sending action, while warm-up is the reputation-building process before sending; it is similar to 'IP warm-up', but the object of warm-up is the email address rather than the IP.