👉 SMTP fluid, short for Simple Mail Transfer Protocol Fluid, refers to the specific sets of text used in email transmission between servers during the SMTP process. These texts are crucial for routing emails through different mail servers and ensuring successful delivery. Unlike standard SMTP messages that consist of headers and body, SMTP fluid is composed of a series of text segments with specific length limits (typically 8-12 bytes) and character sets (usually ASCII or UTF-8). These segments help determine the next hop in the mail routing path, allowing for efficient and reliable email transmission across various networks.
