Check the mailbox
Note the full email address and whether this is a personal or shared mailbox. Involve the appropriate administrator in the connection process.
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Prepare the correct mailbox and permissions before connecting Microsoft 365 to NexReply.
Note the full email address and whether this is a personal or shared mailbox. Involve the appropriate administrator in the connection process.
NexReply uses Microsoft Graph through an app registration in Microsoft Entra for this route. Ask your administrator to prepare the Tenant ID, Client ID and a Client Secret. Retrieving, moving, replying to and sending messages require the Mail.ReadWrite and Mail.Send application permissions with administrator consent. Where possible, the administrator should scope app access to the intended mailbox; application permissions may otherwise apply more broadly. Do not disable MFA or organisational security.
Together, verify that the intended mailbox is accessible. Use an agreed test message before enabling automatic sending. Never share your Microsoft password.
Provider interfaces and policies may change. Check the provider’s current instructions. Reviewed on 9 September 2026.
Contact NexReply to agree on the next step. Ask for a secure transfer link if a Client Secret needs to be provided. Never include passwords or API secrets in the contact form.