If the device or application is only sending email to your own office 365 users and smtp client submission is not an option this is the simplest method.
Office 365 smtp relay limits.
Find the exchange online limits for a variety of service areas including address book limits mailbox storage limits and reporting and message trace limits to name just a few.
Use a dedicated relay connector to send emails through the office 365 smtp relay.
These limits include message processing rates smtp connection rates and smtp session timeout values.
If you re confused about what smtp is.
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If you need more you will need to use the smtp relay.
For guidance on how.
Smtp relay client smtp submission or direct send.
Your office 365 email address email protected password.
Your office 365 password with the settings above you will have a sending limit of 10 000 emails per day and 30 messages per minute.
Which should be more than efficient for most use cases.
Smtp simple mail transfer protocol is used when you set up an on premises multi function printer scanner fax or line of business lob application that needs to send email.
However in this case office 365 does not relay messages for external recipients and will only deliver to your hosted mailboxes.
Message throttling refers to a group of limits that are set on the number of messages and connections that can be processed by an exchange server.
Most email systems use smtp to send emails over the.
Opting for an office 365 smtp relay has the additional benefits of not requiring a separate licensed office 365 mailbox to send emails and this option has higher sending limits than the smtp client submission scenario.
Microsoft 365 or office 365 smtp relay has higher sending limits than smtp client submission.
The maximum number of address lists that can be created in an exchange online or exchange server 2013.
7 minutes to read 5.
Message rate limits and throttling.
A simple mail transfer protocol smtp is a protocol used to send emails from one server to another.
If some or all of your mailboxes are in office 365 there are a few options available.
Microsoft 365 or office 365 smtp relay does not require the use of a licensed microsoft 365 or office 365 mailbox to send emails.
There is no office 365 configuration needed.
Senders are not bound by the 30 messages per minute or 10 000 recipients per day limits.
