SMTP not working on office 365 premium account

GeertCF

Hi All,I have migrated our mail to office 365 premium, and now I have problems with sending mails through osticket. Receiving mails works, but sending not. it gives the following error:Sending Email via SMTP authentication failure [SMTP: Invalid response code received from server (code: 535, response: 5.7.3 Authentication unsuccessful There are a number of forum threads on this topic, but so far nothing has worked. The specific error I can't find either on this forum. Can someone help me?My settings are as follows: blank Logging in on IMAP works, sending mail doesn't workosticket version: v1.10PHP version: 5.5.26 > openssl s_client -crlf -connect smtp.office365.com -starttls smtp -> connects with ssl from my server

Synt4xError

put SSL:// in front of hostname, I don't recall if you need to do it for both of them, but the first one for sure if using SSL. Try it and let us know.

GeertCF

Hi Synt4xError,Fetching the mails works fine. Sending mails does not work. With your proposal I get the following error:Hostname: ssl://smtp.office365.com Sending Email via SMTP Failed to connect to ssl://smtp.office365.com It looks like now it can't even connect anymore.

Synt4xError

Okay so your only issue is with sending mail?

Synt4xError

This isn't response to your latest post, but please update PHP to 5.6.x, your version is not suitable for any edition lower than 1.10 for OSTicket.

GeertCF

I migrated the mailbox away from microsoft to zoho in the end. I will update php 5.6