Wallace asks:

When I send my friend attachments around 7 or more Megabytes the message comes back as undeliverable. Is there a size limit for e-mails?

Answer

The short answer for your question is yes, but then there is the follow up question of why?

E-mail was designed to be a communication system, not a large file transfer system. E-mail quotas range from 20 Megabytes to upwards of several Gigabytes, depending on who administers your e-mail and the unwritten rule for the size of an individual e-mail is 10 Megabytes.

Recently, netINS has increased the maximum size of an individual e-mail to 20 Megabytes, recognizing the need for large attachment transfers. While your attachment was only 7 Megabytes it is important to remember that the limit is applied to the sum of the message's text and the encoded attachment where the encoding causes the size of the attachment to grow.

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