Category Archives: Office 365

Office 365 can not send emails through smtp

After move one domain to office 365 we try to send emails through smtp but not working,

we disable multifactor authentication for the user and domain:

the problem can be identified and demostrated with powershell:

execute from internet explorer:

  1. $credential = Get-Credential  ( enter user id and passwod of one account with outlook license)
  2. Send-MailMessage -From -To -Subject “test” -SmtpServer -Credential $credential -UseSsl -Port 587
  3. this error appear :  5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM [MR2P264CA0054.FRAP264.PROD.OUTLOOK.COM]

to solve it go to powershell session and chech this:

  • Get-TransportConfig | Format-List SmtpClientAuthenticationDisabled
  • if was true, change it to false : Set-TransportConfig -SmtpClientAuthenticationDisabled $false

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Hybrid configuration Office 365 and exchange 2010

This is a step by step to how to cofigure office 365 in a hybrid enviromment, with an exchange 2010 on premise single server, once you have your subscription activated,

the first step:

add your domain to office 665 console, you have two options to validate that you are the owner of the domain, adding some dns records is the option prefered:


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Outlook with Office 365

to understand how the configuration of Outlook with Office 365, basically i using https proxy server exchange:
Outlook with office 365


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Office 365 DNS configuration

365 Dns records set well to work with “365 office” is not an easy task to have it more clear, is the steps I’ve done:

  • we need to modify several parameters in dns records assuming that our domain is (“”):
  • 1. Add validation records (the register office service 365)

tye:  txt value: “MS=ms93xxxxxx”  where the value ms93xxxxxx microsoft gives us when we sign up for the service

type: txt value: “v=verifydomain MS=ms93xxxxxx

we also do validation using MX records, these records will be meaningless once the service set.

type: MX (99)value:”ms93xxxxxx.msv1.invalid

  • 2. Add MX records:
type: MX (10)value:””  ( attention to the first part corresponds to the domain)
  • 3. Add registers spf:
tipo: txt  value: “v=spf1 ~all“.
tipo: txtvalue: “v=spf1 ~all“.
  • 4 Add the register at the dns of “autodiscover” for the outlook and mobile devices are configured automatically:
type: cname value: autodiscover points to:
In this way the requests are redirected to: hacia
{jcomments on}
my latest development (Multiplayer Online Charts game):

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