Title: Problem while sending a mail Last modified: May 28, 2018 --- # Problem while sending a mail * Resolved [netmorix](https://wordpress.org/support/users/netmorix/) * (@netmorix) * [8 years ago](https://wordpress.org/support/topic/problem-while-sending-a-mail/) * The following SMTP-Configuration had been done (data are correct, sending a test mail -> an error occurs with the following log) (the data for authentification are correct) (the site is not live) * Why can’t I send emails from WordPress??? * Versions: WordPress: 4.9.6 WordPress MS: Yes PHP: 7.1.17-1+ubuntu16.04.1+deb. sury.org+1 WP Mail SMTP: 1.2.5 * Params: Mailer: smtp Constants: No ErrorInfo: SMTP connect() failed. [https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting](https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting) Host: smtp.office365.com Port: 587 SMTPSecure: tls SMTPAutoTLS: bool(true) SMTPAuth: bool(true) * Server: OpenSSL: Yes Apache.mod_security: No SMTP Debug: 2018-05-28 14:32:18 Connection: opening to smtp.office365.com:587, timeout=300, options=array ( ) 2018-05-28 14:32:18 Connection: opened 2018-05-28 14:32:18 SERVER -> CLIENT: 220 LO2P265CA0171.outlook.office365.com Microsoft ESMTP MAIL Service ready at Mon, 28 May 2018 14:32:18 +0000 2018-05-28 14:32:18 CLIENT -> SERVER: EHLO [http://www.propain-bikes.com](http://www.propain-bikes.com) 2018-05-28 14:32:18 SERVER -> CLIENT: 250-LO2P265CA0171.outlook.office365.com Hello [62.245.172.156] 250-SIZE 157286400 250-PIPELINING 250-DSN 250-ENHANCEDSTATUSCODES 250-STARTTLS 250-8BITMIME 250-BINARYMIME 250-CHUNKING 250 SMTPUTF8 2018-05-28 14:32:18 CLIENT -> SERVER: STARTTLS 2018-05-28 14:32:18 SERVER -> CLIENT: 220 2.0.0 SMTP server ready 2018-05-28 14:32:18 CLIENT -> SERVER: EHLO [http://www.propain-bikes.com](http://www.propain-bikes.com) 2018-05-28 14:32:18 SERVER -> CLIENT: 250-LO2P265CA0171.outlook.office365.com Hello [62.245.172.156] 250-SIZE 157286400 250-PIPELINING 250-DSN 250-ENHANCEDSTATUSCODES 250-AUTH LOGIN XOAUTH2 250-8BITMIME 250-BINARYMIME 250-CHUNKING 250 SMTPUTF8 2018-05-28 14:32:18 CLIENT -> SERVER: AUTH LOGIN 2018-05-28 14:32:18 SERVER - > CLIENT: 334 VXNlcm5hbWU6 2018-05-28 14:32:18 CLIENT -> SERVER: aW5mb0Bwcm9wYWluLWJpa2VzLmNvbQ == 2018-05-28 14:32:18 SERVER -> CLIENT: 334 UGFzc3dvcmQ6 2018-05-28 14:32:18 CLIENT -> SERVER: TWF0YWxhaHViYTA4MTUh 2018-05-28 14:32:24 SERVER -> CLIENT: 535 5.7.3 Authentication unsuccessful [LO2P265CA0171.GBRP265.PROD.OUTLOOK.COM] 2018-05-28 14:32:24 SMTP ERROR: Password command failed: 535 5.7.3 Authentication unsuccessful [LO2P265CA0171.GBRP265.PROD.OUTLOOK.COM] 2018-05-28 14:32:24 SMTP Error: Could not authenticate. 2018-05-28 14:32:24 CLIENT -> SERVER: QUIT 2018- 05-28 14:32:24 SERVER -> CLIENT: 221 2.0.0 Service closing transmission channel 2018-05-28 14:32:24 Connection: closed 2018-05-28 14:32:24 SMTP connect() failed. [https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting](https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting) Viewing 3 replies - 1 through 3 (of 3 total) * [ZenBen](https://wordpress.org/support/users/zenben/) * (@zenben) * [8 years ago](https://wordpress.org/support/topic/problem-while-sending-a-mail/#post-10335875) * This is probably because of: “Relaying disallowed” I had the same problem, but with zoho and not with outlook! I could solve this by logging into Zoho Webmail with my SMTP useraccount (wordpress@…) and added the email-address I want to send FROM (hello@…) under the setting “send emails as”. Received a verification coder under hello@… , added it under wordpress@… settings, done. Now everything works fine. Don’t know if this works the same way for outlook, though. * [https://help.zoho.com/portal/zohocorp/community/topic/smtp-error-data-end-command-failed-553-relaying-disallowed-as-admin-2](https://help.zoho.com/portal/zohocorp/community/topic/smtp-error-data-end-command-failed-553-relaying-disallowed-as-admin-2) * Plugin Author [Slava Abakumov](https://wordpress.org/support/users/slaffik/) * (@slaffik) * [7 years, 12 months ago](https://wordpress.org/support/topic/problem-while-sending-a-mail/#post-10393165) * [@netmorix](https://wordpress.org/support/users/netmorix/) * For the username, Office365 requires the username in your SMTP configuration to be your full email address, which includes the domain. For example: [your_username@yourOffice365domain.com](https://wordpress.org/support/topic/problem-while-sending-a-mail/your_username@yourOffice365domain.com?output_format=md) Make sure that you have it like that. [Source](https://confluence.atlassian.com/jirakb/office365-smtp-configuration-receives-authentication-errors-646250764.html). * Plugin Author [Slava Abakumov](https://wordpress.org/support/users/slaffik/) * (@slaffik) * [7 years, 12 months ago](https://wordpress.org/support/topic/problem-while-sending-a-mail/#post-10393172) * Also, please read this thread: [https://github.com/PHPMailer/PHPMailer/issues/1339](https://github.com/PHPMailer/PHPMailer/issues/1339) Viewing 3 replies - 1 through 3 (of 3 total) The topic ‘Problem while sending a mail’ is closed to new replies. * ![](https://ps.w.org/wp-mail-smtp/assets/icon-256x256.png?rev=1755440) * [WP Mail SMTP by WPForms - The Most Popular SMTP and Email Log Plugin](https://wordpress.org/plugins/wp-mail-smtp/) * [Frequently Asked Questions](https://wordpress.org/plugins/wp-mail-smtp/#faq) * [Support Threads](https://wordpress.org/support/plugin/wp-mail-smtp/) * [Active Topics](https://wordpress.org/support/plugin/wp-mail-smtp/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wp-mail-smtp/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wp-mail-smtp/reviews/) * 3 replies * 3 participants * Last reply from: [Slava Abakumov](https://wordpress.org/support/users/slaffik/) * Last activity: [7 years, 12 months ago](https://wordpress.org/support/topic/problem-while-sending-a-mail/#post-10393172) * Status: resolved