I have an ASP application. I am emailing invoices and quotations to the customers. It was working before (I was using my hosting server SMTP server). But I have problems to send emails to the email addresses which works on Outlook 365 Exchange. I started to use Outlook 365 Exchange server SMTP for sending the emails (I updated the MX records to Outlook 365 Exchange), and I can send emails to the customers which their emails are working on Outlook 365 Exchange, but not to anybody.
I receive below message when I am sending emails.
The server rejected one or more recipient addresses. The server response was: 550 5.7.64 TenantAttribution; Relay Access Denied [[login to view URL]]
Briefly I need some settings on my Outlook 365 Exchange server. (Exchange Hybrid Deployment Configuration, Email Flow, Connectors, Outbound settings end etc.)
or a new working ASP code for sending emails.
Script can be with ASP or ASP.NET (I need help for integration the code in my ASP application)
PLEASE ONLY VERY CONFIDENT AND EXPERIENCED PROGRAMMERS REPLY.
4 freelanceria on tarjonnut keskimäärin %project_bid_stats_avg_sub_26% %project_currencyDetails_sign_sub_27% tähän työhön
Hi sir hope you are doing good I'm working as mail server expert since 8 years will fix your mail sending issue successfully and fast as fixing these issues on daily basis message me will do it perfectly