Using Domino 9.0.1 server, FP5 on  Linux RedHat, we observed truncated messages when:

1) User has IMAP enabled mail file
2) User access his mail file from iOS native mail application
3) Message has attachment and was send form iNotes sender (with mail server IBM Domino 9.0.1, FP5)

We have reproduced this problem for more users/messages and found out, that the problem is probably in the format of the IMAP_BodyStruct field (that is created in messages of IMAP enabled mail database).

A) Message sent from iNotes sender has this IMAP_BodyStruct content:
(((text" "plain"  ("charset" "UTF-8") NIL NIL "quoted-printable" 2471 42 NIL NIL NIL)("text" "html"  ("charset" "UTF-8") "<>" NIL "quoted-printable" 7687 129 NIL NIL NIL) "alternative"

B) The same message sent from other mail client (e.g. Gmail) has this IMAP_BodyStruct content:
(((text" "plain"  ("charset" "UTF-8") NIL NIL "quoted-printable" 2656 45 NIL NIL NIL)("text" "html"  ("charset" "UTF-8") NIL NIL "quoted-printable" 5076 85 NIL NIL NIL) "alternative"

In case A) is message truncated when opened form iOS mail app, in case B) is OK.

How can we fix this problem? Is there any special configuration or notes.ini parameter to "modify" IMAP_BodyStruct content?

Thanks in advance....