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hi team,
I have a campaign to send bulk emails for recipients using Office 365. ( Thousands per hour/day). Can i know what is my limit before the user get blocked?
and if the user is blocked and i went and unblock it, will I be entitled to send again automatically or i have to wait for some time? and will the same user be blocked again if I am sending bulk emails.
100% agree with the correct answer provided by Vasil. Note the image below from the "sending limits" section of the article he provided.
Don't. While the Exchange Online limits allow for up to 10000 recipients per day, that does not apply to bulk scenarios. Not only the user(s) will be blocked, you risk your entire tenant's mail flow being restricted. Use a tool that specializes in marketing/bulk campaigns instead.
can you please advise on how to differentiate between both scenarios?
bulk and the 1000 recipients per day.
if i can send email for 1000 recipients per day, isnt that considered as bulk emails?
If you are sending messages in automated manner, and only changing minor parts of the message itself, you are more than likely to fall into the bulk message scenario. Microsoft does not disclose the exact criteria used, as this will allow you to bypass them. But if you want to be on the safe side and avoid being blacklisted, best avoid using O365 for this.
Hi @eg1995 ，
Totally agree with both Vasil and Ash that it's not recommended to send bulk emails from Office 365. Below is some more information from official blog for reference:
Microsoft does not recommend sending bulk messages from Office 365, as organizations are often blocked for exceeding the allowed limit (see Exchange Online limits). Instead, send bulk email through on-premises email servers or use a third-party bulk email provider, which normally has a vested interest in working with customers to ensure good email sending practices. To learn more about outbound spam controls, see Outbound spam protection in EOP.
Original article: Email Protection Basics in Microsoft 365: Bulk Email
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Hi @eg1995 ,
I am writing to check how things are going on with this thread. If any of the provided replies is helpful, do you mind accepting it as answer so that others have similar questions can easily referencing this! If you still have further concerns, feel free to post back.