In ezpublish 4.2, I was sending emails with attachments to lotus notes and it was working.
Now in ezpublish 4.3, I do the same but attachments are not shown in lotus. I see the email source instead (with mime and base64 encoded attachments). When I send the same email on other mail client (like zimbra or yahoo), attachments are shown correctly.
Here the code I'm using :(from http://ezcomponents.org/docs/api/latest/introduction_Mail.html#sending-a-mail-with-the-composer)