Outlook 365 Exchange server configuration

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)


Taidot: Active Directory, DNS, Microsoft, Microsoft Exchange, Windows Server

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Tietoa työnantajasta:
( 37 arvostelua ) Melbourne, Australia

Projektin tunnus: #17546311

4 freelanceria on tarjonnut keskimäärin %project_bid_stats_avg_sub_26% %project_currencyDetails_sign_sub_27% tähän työhön


Hi there, Greeting for the day, hope you are doing well I have 10+ Years of experience as windows server support engineer I will help in configuration of Hybrid Exchange deployment with office 365 . so far Lisää

$294 AUD 1 päivässä
(165 arvostelua)

hello I am professional system administrator and server engineer. I have experience in setting up mail servers(SMTP ) exchange servers. I can fix the issue. looking forward to discuss with you on chat. best regards Lisää

$264 AUD 2 päivässä
(149 arvostelua)

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

$105 AUD 1 päivässä
(55 arvostelua)

I have experience in deploying and maintaining of: - Cloud Computing Platforms: Amazon Web Services (EC2, S3, RDS, VPC, Elastic Beanstalk etc); - Server operating systems: Windows Server 2003 - 2012R2, Amazon Linux Lisää

$105 AUD 0 päivässä
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