We are currently experiencing some mail processing delays on us1-smtp-ui.titanhq.com which we are actively triaging at the moment.

We have implemented some measures to speed up mail flow while we triage, 

We will update with our findings in due course and  sincerely apologise for the inconvenience,

Update 19 Nov, 20:15 UTC:

Queues are have been clear for about the last 2.5 hours, we are continuing to monitor!

Apologies for the inconvenience and thank you for your patience and consideration at this time