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Outlook unable to connect

amadino13
I am able to send and receive emails from CPanel via webmail without any issues. However when I try to add the account into Outlook, it's saying "unable to sign in, check credentials and try again." The login info is correct. I have also checked the ports on the server, they are all open "cpanel_php_fpm up cpanellogd up cpdavd up cphulkd up cpsrvd up crond up dnsadmin up exim 4.94.2-4.cp1198 up httpd 2.4 up imap 2.3 up ipaliases up lmtp up mailman 2.1.37-1.cp1198 up mysql 8.0 up nginx up nscd 2.17-325 up pop 2.3 up powerdns 4.4.1-2.cp11100 up queueprocd up rsyslogd 8.24.0-57 up spamd 3.4 up sshd 7.4p1-22 up System Information System Item Details Status Server Load 0.032715 (16 CPUs) Memory Used 44.06% (3,356,788 of 7,617,840) Swap Used 0% (264 of 7,864,316)

Comments

9 comments

Date Votes
  • cPRex Jurassic Moderator
    Hey there! I do see that port 25 is responding how I would expect at this time, assuming the IP address listed in your screenshot is the public IP of the server in question. It's good that you tried multiple devices as that does indicate it is a server or network issue. The next thing I would check would be the logs in /var/log/messages and /var/log/exim_mainlog to see if there are any authentication failures listed there, or issues with the mailserver that may show up.
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  • amadino13
    Here you go, I uploaded both files. There are some authentication failures in the logs, how would I fix them?
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  • cPRex Jurassic Moderator
    Those logs are way too large for me to get any useful data from. The best way to get data would be to do the following: -Run this command on the server: tail -f /var/log/messages
    OR tail -f /var/log/exim_mainlog
    OR tail -f /var/log/maillog
    You can do a separate test for each file, or open multiple terminal windows to see all at once. Those commands will show you the content of each log as it updates in real-time. -Try and connect with Outlook and see what the specific entry is in each log.
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  • amadino13
    I have been playing around with invoicing and it seems that Yahoo is rejecting my emails, any ideas why? This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: cezarghiroltean@yahoo.com host mta5.am0.yahoodns.net [98.136.96.91] SMTP error from remote mail server after end of data: 554 5.7.9 Message not accepted for policy reasons. See https://postmaster.yahooinc.com/error-codes Reporting-MTA: dns; nameless.blkhost.com Action: failed Final-Recipient: rfc822;cezarghiroltean@yahoo.com Status: 5.0.0 Remote-MTA: dns; mta5.am0.yahoodns.net Diagnostic-Code: smtp; 554 5.7.9 Message not accepted for policy reasons. See https://postmaster.yahooinc.com/error-codes Return-path: Received: from blkhost by nameless.blkhost.com with local (Exim 4.94.2) (envelope-from ) id 1nEc3M-0003iz-Pe for cezarghiroltean@yahoo.com; Mon, 31 Jan 2022 14:09:29 -0500 To: Cesar Ghiroltean Subject: Customer Invoice X-PHP-Script: blkhost.com/panel/admin/quotes.php for 69.156.126.155, 69.156.126.155, 10.69.3.173 X-PHP-Originating-Script: 1001:PHPMailer.php Date: Mon, 31 Jan 2022 19:09:28 +0000 From: BLK Host Reply-To: BLK Host Message-ID: <9S5qEkk4mYWPhxtysumi8VJZuz9ksYgbGTdlsq1BakE@blkhost.com> X-Mailer: BLK Host MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="b1_9S5qEkk4mYWPhxtysumi8VJZuz9ksYgbGTdlsq1BakE" Content-Transfer-Encoding: 8bit X-Exim-DSN-Information: Due to administrative limits only headers are returned
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  • cPRex Jurassic Moderator
    That's the standard Yahoo bounceback message. Your IP address is on Yahoo's blacklist so they won't process your mail. If you check Email Blacklist Check - IP Blacklist Check - See if your server is blacklisted you'll see your server's IP is also listed there in one of the major blacklists, so that is also something that will need to be addressed. I'd start with the Sorbs list mentioned in MXToolbox, and then see if you continue to have issues with Yahoo separately - while they do maintain their own blacklists, they definitely base it off some of the public lists as well.
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  • amadino13
    I got it. I am using Cloudflare so one of the IP's seems to be blacklisted. I will see what I can do about that and go from there. Thank you for your help!
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  • cPRex Jurassic Moderator
    You're welcome - let us know what you find out!
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  • raysk8ap
    Greetings, I also have the same problem. I've tried to use my account through Outlook, I've used the mail client configuration provided by CPanel for my account, but at the moment of logging in it shows the message "Login to incoming mail server (IMAP): Cannot find host mail.regiona*******.g**.p*'. Check if you have typed the server name correctly." Something needs to be configured by the domain administrator or what am I doing wrong.
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  • cPRex Jurassic Moderator
    It sounds like something is wrong on the server side. Instead of mail.domain.com, can you try just domain.com for the mailserver? It looks like the DNS records for the mail subdomain may not exist.
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