'Connection could not be established with host smtp.office365.com :stream_socket_client(): php_network_getaddresses

I'm getting this error when sending an email via Office 365 from a Laravel system. But the peculiarity is that it is random. It is not a mail configuration problem. Sometimes it works, sometimes it gives the error. I think Office 365 is doing a lock. But the error message confuse me. Has it happened to someone? Thanks!

Connection could not be established with host smtp.office365.com :stream_socket_client(): php_network_getaddresses: getaddrinfo failed: Name or service not known site:stackoverflow.com

laravelemailoffice365


Solution 1:[1]

if you are sure that you configure the mail correctly

MAIL_DRIVER=smtp
MAIL_HOST=smtp.office365.com
MAIL_PORT=587
MAIL_USERNAME= //your username
MAIL_PASSWORD= //your password
MAIL_ENCRYPTION=tls

according to this issue discussions, it seems that it may related to WHM/Cpanel Users-- there is a tweak setting that may be tripping you up and redirecting outgoing email connections to localhost (which is then rejecting your connection).

https://features.cpanel.net/topic/change-fka-smtp-tweak-behavior-to-encourage-correct-user-behavior

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Omar Tammam

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