[Exim] Exim-4.14 and Exim-4.20 test - Problem old version OE…

Hi,

I tested two last version Exim-4.14 and 4.20. I have a foolowing problem:

Server 1

Exim-4.14+Exiscan(no acl)+Sophos
--------------------------------
Outlook Express version > 5.5 (W98/W2k) - works very good
Mozilla version > 1.0 (W98/W2k) - works very good


Server 2

Exim-4.20+Exiscan-acl-4.20-09+ClamAV or Sophie+Sophos
-----------------------------------------------------
Outlook Express version > 6.0 (W98/W2k) - works very good
Mozilla version > 1.4 (W98/W2k) - works very good
Mozilla 1.2 (Debian-Linux) works very good.

but ...

Outlook Express version < 6.0 (W98/W2k)
- message with attachment higher up 5 MB freeze apllication (OE)

Mozilla version < 1.2 (W98/W2k)
- message with attachment higher up 5 MB freeze apllication (Mozilla)

Max message size (Exim and AV) = 50 MB

Any ideas ?

Thanks for help

Slawek