Sent email delay

Hi,

Just upgraded to Ver 10.1.4588 and when I send an email it is not showing up in the “Sent” folder until 5 minutes later. It does show sent on on my Ipad immediately? There must be a setting somewhere but I cannot locate anything other than the “Undo” time setting. I have checked the “Send Immediately” option but it is not sending immediately?

Anyone else noticed this? Can someone please provide some help in this regard?

Thanking you in advance,

Richard