Limits on size of email attachments through our smtp server.
This article specifies the limits on the size of an email attachment and explains why you might not be able to send an attachment.
Email attachments sent through OUR SMTP server are limited to a total of 20MB, for any single email. Any email with attachments in excess of this limit, will be rejected. ( If you have Advanced email accounts or connect via our broad band or dial up.)
If you use your ISP’s SMTP server they willl have their own limits.
Customers needing to send attachments larger than this, are advised to compress large files to within this limit; or to split the attachment into several part and to send each part in a separate email.
Note: This limit applies to the total size of all attachments. For example, two files of 10MB each will be within the limit, while an email with files of 10MB and 11MB (totalling 21MB) will be rejected.