Email alerts -while sending mail to multiple user 1 by 1 getting error as server busy

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i have create one page and schedule at every day 1 pm
and email will be send as per req
but after 15 to 20 user
it get error

Service not available, closing transmission channel. The server response was: 4.4.5 Server busy, try again later. (mx.google.com) j3sm44131820pbh.38 - gsmtp

Posted 3-Mar-14 20:38pm

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Jhone2011 · Answer 1 · 2014-03-03T21:49:00

Solution 1

use sendAsync() method of STMPCLIENT class, read online articles for more detail

Posted 3-Mar-14 21:49pm

Jhone2011

Anubhav689 · Answer 2 · 2014-03-03T21:51:00

Hey,

It's hard to say something by just knowing that after 15-20 users your application is giving the error but still I am trying to solve your problem.

Look, we can only send 500 mails using the SMTP Configuration for Gmail/ Yahoo/ Hotmail but if we are sending bulkmail from Outlook or something else like outlook then we can only send 100 mails using the SMTP Configurations.

So, it might be possible that you are sending Emails more than allowed.

But if this's not a problem than you can try my these articles, these will definitely send your Emails to atmost 500 Users:

http://www.c-sharpcorner.com/UploadFile/cd7c2e/send-bulk-email-from-yahoo-and-hotmail-using-Asp-Net/[^]

http://www.c-sharpcorner.com/UploadFile/cd7c2e/send-bulk-mails-using-smtp-configuration-part-2/[^]