You have to send a message to your subscribers and send a couple of PDF documents. Is it better to use bulk e-mail attachments or links to online files? MaxBulk Mailer fully supports attachments, but except in very particular cases, I would recommend not to send attachments as part of a bulk email campaign. I mean all of them, whether they are PDFs, Word files, Excel files, or pictures. There are several reasons for that, but I will talk about the most important ones (in my opinion) for you and your recipients: Bulk e-mail attachments, Message size, and delivery speed …