weird yahoo sent email error

today i sent email to myself using yahoo mail application on samsung J3 smart phone

when i check inbox and sent folder in both folders my latest email didnt show for 5-10 minutes

This could be a synchronisation delay. The program responsible for sync'ing your data may not have been active and running. This is often the case with Android sometimes as it's not the greatest when it comes to handling processes and memory. Often programs do not stay in memory and so they have to be refreshed in order to start doing their tasks again. Take for example when you don't use your browser for a while. Upon opening it up you'll find a blank screen followed by several seconds that go by with the browser trying to gather information on what you were doing last. Eventually the page reloads but it's almost like Android forgot what you were doing.

It may be the same thing for sync'ing of your data. It's an annoying 'feature' with Android. Memory management is pretty poor when it comes to Android. But it also can have something to do with the specs of your smartphone. Cheaper smartphones will have difficulty keeping lots of information in memory and so will need to prioritise particular processes over others. It may be the case that auto-sync (if enabled) does not take the highest priority and so may need to be nudged into running and sync'ing data.
To remedy this you can do things related to sync'ing of data and this will usually start a cascading process whereby everything connected to sync begins to run and connected processes begin to run and do their job. Sometimes it's literally a case of waking up parts of Android because they often go to sleep and stop running properly, some of them may even exit without prompting.

It could also have something to do with a delay at the server side. Although unusual it can happen. I would say in terms of chances it was server side it would be very low as Yahoo have enough resources to run their email services and their infrastructure will be stable enough to provide resources to their customers on-demand and without delay. Seeing as you mentioned an app, it may also have something to do with this and how it communicates with the operating system. It could be a bug. Or it could simply be down to Android not sync'ing your emails upon request from the Yahoo app. I can imagine the Yahoo app will have created a sync account on Android to enable persistent send/receive. Perhaps Android is not sync'ing the data straight away.

Also, check to see if you have auto-sync enabled.

supermammalego said:

Also, check to see if you have auto-sync enabled

supermammalego thanx for the explanation