I'm receiving Yahoo emails with an unusual delay

Question

During the last few months I've been receiving my emails from Yahoo with a 15-30 minutes delay. Something extremely unusual as they previously seemed to be sent almost instantaneously to my phone. I also have a Gmail account configured in my phone and I receive those emails as they should, almost instantaneously.
The Yahoo domain I use is yahoo.es, my device is a Bold 9780 and my Carrier is Movistar Chile (also known as Telefonica Chile).
I look forward to hearing from you.

Answer 1

Hi and Welcome to the Community!
The actual "normal" delay to expect is around 15 minutes. For those email services that have true PUSH and where BIS can work with that, it can be faster. But, an expectation of around 15 minutes is quite normal. Refer:
KB13374 Delayed email message delivery to the BlackBerry smartphone
However, there also is this:
KB12373 BlackBerry Internet Service real-time delivery of email messages from AOL, Gmail and Yahoo! Mail accounts
Coupled with the fact that it used to be quicker for you, then you should probably do these steps.
With a strong carrier network signal (e.g., not merely WiFi), I suggest the following steps, in order, even if they seem redundant to what you have already tried (steps 1 and 2 each should result in a message coming to your BB...please wait for that before proceeding to the next step):
1) Register HRT
KB00510 How to register a BlackBerry smartphone with the wireless network
Please wait for one "registration" message to arrive to your Messages app
2) Delete and Resend Service Books
KB05000Delete the service book for the BlackBerry Internet Service email account from the BlackBerry smartphone
If you have no CMIME entry, then skip the deletion
KB02830 Send the service books for the BlackBerry Internet Service
Please wait for "Activation" Messages, one per already configured email account, to arrive in your Messages. If you have no already configured email accounts, please wait 1 hour.
3) Reboot
With power ON, remove the back cover and pull out the battery. Wait about a minute then replace the battery and cover. Power up and wait patiently through the long reboot -- ~5 minutes.
See if things have returned to good operation. Like all computing devices, BB's suffer from memory leaks and such...with a hard reboot being the best cure.
Hopefully that will get things going again for you! If not, then you should try deleting and re-adding your configurations for the affected email accounts. Otherwise, you should contact your mobile service provider for formal support.
Good luck!
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
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