system
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Thanks for the prompt replies.
I am currently using Microsoft Office Outlook 2003 (11.8010.8107) SP2.
My OS is Windows XP Home Edition Version 2002 Service Pack 2.
If I am not mistaken, I am using the Outlook plugin of avast (avast! On-Access Scanner for Outlook/Exchange).
My email is a webmail POP/SMTP account. I have tried on my webmail by logging in and sending mails in it with HTML/RTF files attached, there was no problem. The problem only arrives when I use Outlook.
I have not installed any other antivirus in the past. I am using Windows Firewall.
Both Windows XP Home Edition & Outlook 2003 are updated recently.
My avast was set on auto updates. I am not sure which version of the updates for avast caused the problem, as it is only once awhile that I send mails with HTML/RTF files attached. I am very sure that in the past, there was no problem for sending those files.
Thank you so much for assisting to help on this issue of mine.
If you need more details, feel free to ask. I will revert back asap.