Why did I receive a mailer demon after sending a mail with attachment to my Yahoo group?

Question

Why did I receive a mailer demon after sending a mail with attachment to my Yahoo group?

Answer 1

the mailer daemon with have the reson written within it as to why it was returned. the group may not accept attachments, it may have been too large as well

Answer 2

Maybe the following is the reason:

What’s the maximum size of messages that can be posted to a group?

Messages up to 1MB can be delivered to your group. This includes both the message body and the attachment. As a general rule, attachments should be no larger than 800KB. If you post a message larger than 1MB it will be returned to you.