My company is still working through the initial rollout of Front, and for the most part it is going well.
We have some users complaining of a delay between emails hitting their old Outlook client through an 0365 channel and showing in Front. We’ve done some testing and have not been able to replicate.
I found some discussions on SMTP rate limiting, but I am curious-- are delays with retrieving emails from O365 a known issue?
Hi Colin,
Dean from Front’s support team here 
Generally most emails synced from an O365 channel to Front should be received immediately and be visible to users after a very short period (a couple of seconds). There are some cases where delays can be experienced, but these are usually resolved quickly and users do not notice the impact. This can be due to issues coming from Microsoft, rate limiting, etc.
If this continues to be an issue, I’d recommend reaching out to our support team with the conversation IDs where your users are experiencing a delay, and we can take a closer look at that point 
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