{"id":1023,"date":"2021-12-03T17:38:28","date_gmt":"2021-12-03T16:38:28","guid":{"rendered":"https:\/\/www.delixirpro.com\/blog\/?p=1023"},"modified":"2023-04-06T10:22:27","modified_gmt":"2023-04-06T08:22:27","slug":"office-365-transfert-de-message-5-7-520-access-denied-your-organization-does-not-allow-external-forwarding-please-contact-your-administrator-for-further-assistance-as7555","status":"publish","type":"post","link":"https:\/\/www.delixirpro.com\/blog\/2021\/12\/03\/office-365-transfert-de-message-5-7-520-access-denied-your-organization-does-not-allow-external-forwarding-please-contact-your-administrator-for-further-assistance-as7555\/","title":{"rendered":"Office 365 \/ Transfert de message : 5.7.520 Access denied, Your organization does not allow external forwarding. Please contact your administrator for further assistance. AS(7555)"},"content":{"rendered":"\n

Vous avez configur\u00e9 un transfert automatique de messagerie depuis un compte Exchange 365. Lorsque la boite mail re\u00e7oit un mail et tente de transf\u00e9rer le message vers l’adresse de redirection, vous obtenez un message de retour : 5.7.520 Access denied, Your organization does not allow external forwarding. Please contact your administrator for further assistance. AS(7555)<\/strong><\/p>\n\n\n\n

Cela est du \u00e0 une configuration incorrecte des messages sortants (Blocked email forwarding messages) depuis le module Microsoft 365 Defender. Le probl\u00e8me est d\u00e9crit ici : https:\/\/docs.microsoft.com\/en-us\/microsoft-365\/security\/office-365-security\/external-email-forwarding?view=o365-worldwide<\/a><\/p>\n\n\n\n

On peut r\u00e9gler assez simplement ce probl\u00e8me en cr\u00e9ant une r\u00e8gle de transfert mais le syst\u00e8me nous en emp\u00eache et demande syst\u00e9matiquement d’activer cette fonctionnalit\u00e9 par l’interm\u00e9diaire de commande Powershell.<\/p>\n\n\n\n

Solution<\/h2>\n\n\n\n

1. Lancer une invite de commande Powershell en admin<\/p>\n\n\n\n

2. Lancer la commande :<\/p>\n\n\n\n

Install-Module MSOnline<\/pre>\n\n\n\n
Validez avec T<\/p>\n\n\n\n
3. Installer le module  AzureADPreview<\/p>\n\n\n\n
Install-Module AzureADPreview<\/pre>\n\n\n\n
Validez avec T<\/p>\n\n\n\n
4. Installer le module ExchangeOnlineManagement <\/p>\n\n\n\n
Install-Module ExchangeOnlineManagement<\/pre>\n\n\n\n
5. Importer le module AzureAD<\/p>\n\n\n\n
Import-Module AzureAD<\/pre>\n\n\n\n
6. Importer le module ExchangeOnlineManagement <\/p>\n\n\n\n
Import-Module ExchangeOnlineManagement<\/pre>\n\n\n\n
7. Se connecter \u00e0 Exchange Online via Powershell<\/p>\n\n\n\n
Connect-ExchangeOnline<\/pre>\n\n\n\n
Le syst\u00e8me va prompter la fen\u00eatre de connexion (similaire \u00e0 celle \u00e0 toutes les applications Office). Identifiez-vous. Cela va donner ce r\u00e9sultat :<\/p>\n\n\n\n
\"\"
R\u00e9sultat de la commande Connect-ExchangeOnline<\/figcaption><\/figure>\n\n\n\n
7. Modifier la s\u00e9curit\u00e9 de Powershell<\/p>\n\n\n\n
Set-ExecutionPolicy RemoteSigned -force
Set-ExecutionPolicy Unrestricted -force<\/pre>\n\n\n\n
Validez avec T <\/p>\n\n\n\n
8. Autoriser le mode de transfert (forwarding mode)<\/p>\n\n\n\n
Get-HostedOutboundSpamFilterPolicy | Set-HostedOutboundSpamFilterPolicy -AutoForwardingMode on<\/pre>\n\n\n\n
Les transferts sont maintenant fonctionnels.<\/p>\n\n\n\n
Si vous recevez ce message :<\/p>\n\n\n\n
Write-ErrorMessage :
|Microsoft.Exchange.Configuration.Tasks.InvalidOperationInDehydratedContextException|La commande dont vous
avez tent\u00e9 l’ex\u00e9cution n’est pas autoris\u00e9e actuellement pour votre organisation. Pour pouvoir ex\u00e9cuter
cette commande, vous devez commencer par ex\u00e9cuter la commande Enable-OrganizationCustomization.<\/em><\/p>\n\n\n\n
Executer alors cette commande :<\/p>\n\n\n\n
Enable-OrganizationCustomization<\/pre>\n\n\n\n
Source : https:\/\/jasoncoltrin.com\/2021\/12\/20\/how-to-fix-550-5-7-520-access-denied-your-organization-does-not-allow-external-forwarding\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Vous avez configur\u00e9 un transfert automatique de messagerie depuis un compte Exchange 365. Lorsque la boite mail re\u00e7oit un mail et tente de transf\u00e9rer le message vers l’adresse de redirection, vous obtenez un message...<\/p>\n","protected":false},"author":1,"featured_media":1027,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[11,64,37],"class_list":["post-1023","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech-tips","tag-exchange","tag-forwarding","tag-outlook"],"_links":{"self":[{"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/posts\/1023","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/comments?post=1023"}],"version-history":[{"count":9,"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/posts\/1023\/revisions"}],"predecessor-version":[{"id":1388,"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/posts\/1023\/revisions\/1388"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/media\/1027"}],"wp:attachment":[{"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/media?parent=1023"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/categories?post=1023"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.delixirpro.com\/blog\/wp-json\/wp\/v2\/tags?post=1023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}