What are the outmail message size limits
What are the outmail message size limits?
outMail message size limit is set to 50Mb (MIME encode).
So what does that mean to an actual message size (to save me working out the MIME encoded size)?
Typically MIME encoding a message adds approx 36% to the real size of the message. So a 50Mb MIME encoded message would be a real message of 36Mb in size.
Remember the MIME Message size will include the combined size of the headers, message body and all the attachments.
Q - Can the message limit be increased?
Q - Why 50Mb?
Q - My Exchange server won't let me send emails that large.
Q - What are other ISPs message size limits?
Q - Can I send a 100Mb to Office365 users?
For more information on message size limits, minimums and restrictions please refer to SMTP RFC (RFC 2821), http://www.ietf.org/rfc/rfc2821.txt.