Title: failed mail test "incorrect authentication data"
Last modified: September 1, 2016

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# failed mail test "incorrect authentication data"

 *  [macgirl](https://wordpress.org/support/users/macgirl/)
 * (@macgirl)
 * [9 years, 10 months ago](https://wordpress.org/support/topic/failed-mail-test-incorrect-authentication-data/)
 * 220-vern.gendns.com ESMTP Exim 4.87 #1 Tue, 26 Jul 2016 12:21:28 -0400
    220-We
   do not authorize the use of this system to transport unsolicited, 220 and/or 
   bulk e-mail. EHLO localhost 250-vern.gendns.com Hello vern.gendns.com [206.190.152.46]
   250-SIZE 52428800 250-8BITMIME 250-PIPELINING 250-AUTH PLAIN LOGIN 250 HELP AUTH
   PLAIN 334 AG9mZmljZQAxNzI3eWF0ZXM= 535 Incorrect authentication data
 * [https://wordpress.org/plugins/postman-smtp/](https://wordpress.org/plugins/postman-smtp/)

The topic ‘failed mail test "incorrect authentication data"’ is closed to new replies.

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## Tags

 * [authentication](https://wordpress.org/support/topic-tag/authentication/)
 * [incorrect](https://wordpress.org/support/topic-tag/incorrect/)

 * 0 replies
 * 1 participant
 * Last reply from: [macgirl](https://wordpress.org/support/users/macgirl/)
 * Last activity: [9 years, 10 months ago](https://wordpress.org/support/topic/failed-mail-test-incorrect-authentication-data/)
 * Status: not resolved