#Best email app for office 365 how to#

This bypass can help protect your company IP addresses from being blocked by a spam list.

This method bypasses most spam checks for email sent to people in your organization.

SMTP AUTH client submission allows you to send email to people in your organization and outside your company.

The following diagram gives you a conceptual overview of what your environment will look like.

If your device recommends or defaults to port 465, it doesn't support SMTP AUTH client submission. To find out more about configuring your own email server to send mail to Microsoft 365 or Office 365, see Set up connectors to route mail between Microsoft 365 or Office 365 and your own email servers. In fact, you might find it easier to configure and manage an on-premises SMTP server to relay messages from your devices and applications, especially if you have many devices and applications that send email.

Use an on-premises email server (Exchange Server or any other SMTP server) to relay mail if your device is unable to meet the previous requirements for connecting to Microsoft 365 or Office 365.

Depending on your requirements, use direct send (Option 2) or Microsoft 365 or Office 365 SMTP relay (Option 3) instead.

If your device or application doesn't support TLS 1.2 or above, you have the following alternatives: As long as your scenario meets the requirements for SMTP AUTH client submission, the following settings will enable you to send email from your device or application.Р В РІР‚СњР вЂ™Р’В®nter the sign-in credentials of the hosted mailbox being usedР В РІР‚СњР вЂ™Р’Вetermine what version of TLS your device supports by checking the device guide or with the vendor.

#Best email app for office 365 how to#

How to set up SMTP AUTH client submissionР В РІР‚СњР вЂ™Р’В®nter the following settings directly on your device or in the application as their guide instructs (it might use different terminology than this article).

The email address of the account that's used to authenticate with Microsoft 365 or Office 365 will appear as the sender of messages from the device or application. To configure your device or application, connect directly to Microsoft 365 or Office 365 using the SMTP AUTH client submission endpoint .Р В РІР‚СњР вЂ™Р’В®ach device or application must be able to authenticate with Microsoft 365 or Office 365.

You want to send email to people inside and outside your organization.

You want to send email from a third-party hosted application, service, or device.

This option supports most usage scenarios and is the easiest to set up.

For more information, see Enable or disable authenticated client SMTP submission (SMTP AUTH) in Exchange Online.

SMTP AUTH is disabled for organizations created after January 2020 but can be enabled per-mailbox. You must also verify that SMTP AUTH is enabled for the mailbox being used. To find out more about OAuth, see Authenticate an IMAP, POP or SMTP connection using OAuth. As a result, there are no plans to disable Basic Authentication for SMTP AUTH clients at this time. Although SMTP AUTH now supports OAuth, most devices and clients have not been designed to use OAuth with SMTP AUTH. We recommend using Modern Authentication when connecting with our service. This option is not compatible with Microsoft Security Defaults.