SMTP account and Office365 send limits....

[DrewW]

So we are a Health care company and we need to make sure that when some messages go to vendors that those messages use encryption.  We have Office365 and when we put certain words in the subject the mail system takes care of this for us.  For this reason we added our own SMTP account to the system and disabled the default.  Also do to other reasons we cannot use it as a simple relay and have use authentication to send message.

What we have found is Office365 has some hard limits on total recipients for a 24 hour period and we were told that there was no way to alter this.

Is there anyone out there that has a similar setup and found an easy way around this?

Right now I'm looking at having to setup two or more accounts and alternate between them in an automated fashion.

[S_C Pressley]

Sounds like you need to incorporate SSL (Secured Socket Layer) in your email. This is an important feature that should be enabled when sending sensitive material through email especially with POP3 and SMTP. 

this link has everything you need to solve your issue. I really hope this helps! 🙂 https://www.itprotoday.com/email-and-calendaring/securing-smtp-email-traffic

[DrewW]

Thanks for the reply but that is why we are sending all of the mail over to Office365, we can guarantee that TLS is used to there and once there when Office365 tries to deliver it if the other end does not support TLS which some of them do not then O365 uses an alternate delivery option that involves an unencrypted email telling them to login to a secure site to get the message.

[S_C Pressley]

anytime! As long as your client/server have the same email capabilities and settings, encryptions should be a breeze. Good luck! 

[DrewW]

Its not setting encryption thats the issue, its the limits that O365 imposes on sending that are causing problems.