I do not receive emails from Office 365 or Outlook

Maintenance
1

hello, I use Mailinabox for almost 18 months, currently I use the latest version on Ubuntu server, everything works fine.

Except that sometimes you can send me mails that I will never receive.

These appear to be sent from Outlook or Office 365 addresses.

Have you noticed this type of problem?

have a good day

2

I am the only one with this problem?

3

It sounds like maybe their SPF is wrong. I’d contact the owner of the email address having issues and tell them to have their IT people of the issue.

4

It all started by not receiving the mails of a train company SNCF, I do not know what service they use, then my lawyer, I never received these mail, I was forced to use a Yahoo address to receive these mails send from the outlook servers.

The company where I work provides Office 365 addresses, so I tried to send an email, but I never received it.

So having an Office 365 address, or do I have to check the SPF? I thank you