How can Enterprises send bulk marketing emails (80,000+ emails)?

Hello All, Looking for the solution to send bulk emails. I understand, By default, all mailboxes have a 10,000 email per 24 hours send limit to prevent spam. However, our marketing team runs a campai...

exchange

office 365

VasilMichev

MVP

Aug 29, 2018

Use *anything* other than O365, as you risk getting your entire tenant blocked. Whether it's a 3rd party or home-grown solution, depends on multiple factors, so it's up to you to decide. But don't even try to use O365 as a bulk-messaging tool, unless you want to spend hours on the phone trying to restore proper mail flow.

Admin O365

Brass Contributor

Sep 04, 2018

VasilMichev, further update -

Agreement to use 3rd party to send out emails (mostly nailing down to SENDGRID)

As no Exchange On-premise server, because migrated all mailboxes to Office365 and Exchange servers are decommissioned.

In such case, looking at SMTP relay that will be used to forward the mail to SENDGRID.

questions:

a) Onpremise Application that will be sending bulk emails, not sure if recommended to directly configure the SENDGRID details on the appplication.

Looking at security standpoint, wont that affect or expose the application server (port 25 only allowed, but worried if system can be compromised)?

b) If SMTP gateway used, such as LINUX system with SMTP relay do you see any issue or point of advice.

Thanks in advance.

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How can Enterprises send bulk marketing emails (80,000+ emails)?

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