Title: EMail send errors
Last modified: December 13, 2018

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# EMail send errors

 *  Resolved [slawrie](https://wordpress.org/support/users/slawrie/)
 * (@slawrie)
 * [7 years, 5 months ago](https://wordpress.org/support/topic/email-send-errors/)
 * Hi,
 * Just updated to version 2.0.74 (first update for about a year). There is a problem
   with sending email notifications. About 50% of the time they are not sending.
 * I’ve tried SMPT debugging and this is the error log:
    Mail to the following persons
   has not been sent: [Name](SMTP Error: data not accepted.SMTP server error: DATA
   END command failed Detail: Temporary local problem – please try later SMTP code:
   451)
 * email was working consistently before the upgrade (right before the upgrade).
   Settings have not been changed.
 * The same thing did also happen on our staging site, although I didn’t realise
   it was related to the plugin, thought it was server-related.
 * Any ideas?
 * Thanks.

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [Franky](https://wordpress.org/support/users/liedekef/)
 * (@liedekef)
 * [7 years, 5 months ago](https://wordpress.org/support/topic/email-send-errors/#post-10983808)
 * That error is an error from the mailserver, so your problem lies there. Check
   the mailserver.
    See also: [https://stackoverflow.com/questions/23105354/server-response-451-451-temporary-local-please-try-later-when-sending-email](https://stackoverflow.com/questions/23105354/server-response-451-451-temporary-local-please-try-later-when-sending-email)
 *  Thread Starter [slawrie](https://wordpress.org/support/users/slawrie/)
 * (@slawrie)
 * [7 years, 5 months ago](https://wordpress.org/support/topic/email-send-errors/#post-10983832)
 * Thanks, I’ll check the mailserver.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘EMail send errors’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [slawrie](https://wordpress.org/support/users/slawrie/)
 * Last activity: [7 years, 5 months ago](https://wordpress.org/support/topic/email-send-errors/#post-10983832)
 * Status: resolved