sql server - Getting error "The operation has timed out." when my procedure send around 5000 emails -


i have procedure identifies number of employees , send email them dynamically (add names in / from). out of 5000 emails triggered 700-800 gets sent other in re-trying or failed status every time.

getting below error :

the mail not sent recipients because of mail server failure. (sending mail using account 1 (2017-04-14t12:40:47). exception message: cannot send mails mail server. (the operation has timed out.). ) mail could not be sent to the recipients because of the mail server failure. (sending mail using account 1 (2017-04-13t16:43:32). exception message: cannot send mails to mail server. (service not available, closing transmission channel.the server response was: 4.3.2 maximum number of concurrent connections has exceeded limit, closing transmission channel).


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