Problème d'envoi avec OUTLOOK Express

Effectivement il y a sûrement des solutions moins radicales que de désactiver l'antivirus pour les messages sortants...

Bonjour,

A lire et à méditer : deux articles sur l'efficacité (et le risque) du scanning des messages entrant et sortant, par des gourous en la matière. A chacun de se faire son opinion. Personnellement je suis incapable (incompétent) de trancher.
Je poste cette réponse, non pas pour polémiquer ou susciter un débat, mais pour que vous compreniez bien que les choses ne sont pas aussi évidentes que l'on croit. La retenue et la réflexion sont de mise.

1° source http://www.oehelp.com/OETips.aspx#4

3. Turn off email scanning in your antivirus software.

Antivirus software invades the Outlook Express program to try and intercept (incoming and, in some cases, outgoing) messages that might contain virus. The problem with this approach is that the antivirus software can trigger the destruction of an entire message folder or the entire message store, when it attempts to remove a message containing a potential virus.

Because of the fragility of the OE message store structure and its propensity for destruction, this applies to just about any antivirus program that touches the OE message store. So its best to follow these instructions regardless of what antivirus program you use. This suggestion also extends to anti-spamware programs that interfere with the operations of OE. Such software should be disabled with respect to OE mail, or uninstalled.

To prevent the possibility of such destruction occuring, turn off email scanning in your antivirus software. You will still be protected against infection. If you attempt to open a message attachment containing a potential virus, then your antivirus software will recognize that your are attempting to infect your system, and will block you from doing so.


2* source https://support.microsoft.com/en-us/office/internet-explorer-help-23360e49-9cd3-4dda-ba52-705336cc0de2?ui=en-US&rs=en-001&ad=US

Viral Irony: The Most Common Cause of Corruption

When encountering the symptoms of DBX corruption, many people immediately fear that their computer is infected with a virus. As surprising and ironic as it may seem though, the most common cause of DBX corruption is not a virus, but rather anti-virus programs that are configured to scan incoming or outgoing e-mail. Even the most well-known anti-virus programs have exhibited this problem from time to time. To lessen the risk of such corruption you should disable the e-mail scanning module in your anti-virus program. This is usually easy to do by looking at the user-configurable options in the anti-virus program. It is not at all necessary to scan e-mail for viruses to protect your computer.

Now before you dismiss me as mad, let me explain why e-mail scanning is unnecessary. Almost every anti-virus program for Windows installs by default a system scan that runs in the background every time Windows starts. This scan is necessary to protect your computer. If you receive a virus in an e-mail attachment, the virus cannot do anything at all until you actually open the attachment. At that time Outlook Express extracts the attachment from the message and saves it to the Temporary Internet Files folder on your hard disk and attempts to open the file. And it is precisely at that moment that a background system scan will detect the virus, provided it is able to do so, and stop the virus from executing. The system scan will usually delete the infected file from the Temporary Internet Files folder, or else move it to quarantine. To remove the infected e-mail message in Outlook Express, simply hold the Shift key while you press the Delete key. That's all it takes to keep your computer safe, both from e-mail viruses and e-mail anti-virus scanners. Scanning e-mail as it arrives therefore adds nothing to your level of protection. It might indeed make you feel more protected, but that feeling is an illusion. If the system scan is unable to detect the virus, the e-mail scan will fail to do so also.

Cordialement

Re !

C'est très sympa de ta part, je n'en doute pas mais... je ne comprends pas l'anglais..
Sincèrement désolée.