Transmitting files via email requires careful consideration of the format used. Certain file types can pose security risks, compatibility issues, or consume excessive bandwidth. For instance, executable files (.exe, .bat) are frequently associated with malware and are often blocked by email servers. Similarly, large, uncompressed image files can clog mailboxes and strain network resources.
Selecting appropriate file formats for email attachments is crucial for maintaining network security, ensuring message deliverability, and promoting efficient communication. Historically, restrictions on file types were implemented to combat the spread of viruses and worms disseminated through email. Adherence to these practices improves the likelihood that recipients will be able to open and access the attached content while mitigating potential risks.