Allegati fastidiosi

Quando invio una mail con allegati, questi allegati mi appaiono non solo come icone, a parte, ma anche nel testo della mail stessa, il che è fastidioso.
È possibile evitarlo? Come fare?

It depends on what the attachments are.

Image attachments will always appear as previews below the actual message. They are not in the message, just the we display them as previews after the message. Other email applications may treat image attachments differently, but Thunderbird for example does exactly the same.

No other attachments should appear as previews though.