Delayed email received from @outlook / @hotmail

Hello we are getting a new issue regarding receiving emails from known providers: outlook / Hotmail (only ) I've noticed that when sending emails from xx@outlook.com to our mail server xx@domain.com it got delayed for +3 hours I've sent a Test mail at 9:43 am from outlook to our mail server and I got it delivered at 12:24 pm, it is shown on our mail server that it was received at 9:50 am!! but that's not true for sure so, I've taken the mail header from the received email in our server and tested it on mxtoolbox and here's the result what highlighted in red is our mail server hostname as you can see there's a delay 3 hours !! and I've checked Exim Configuration Manager and no delay option is ON as screenshot and here's Exim_mainlog the time email received

2021-10-27 12:24:27 1mfg6c-0001fe-Tt H=mail-oln040092067035.outbound.protection.outlook.com (EUR02-AM5-obe.outbound.protection.outlook.com) [40.92.67.35]:31446 Warning: "SpamAssassin as Server detected message as NOT spam (-0.2)"
2021-10-27 12:24:27 1mfg6c-0001fe-Tt <= xxx@outlook.com H=mail-oln040092067035.outbound.protection.outlook.com (EUR02-AM5-obe.outbound.protection.outlook.com) [40.92.67.35]:31446 P=esmtps X=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256 CV=no S=7443 id=VI1PR07MB6317510C254193597DCC2E22D1859@VI1PR07MB6317.eurprd07.prod.outlook.com T="test" for xx@domain.com
2021-10-27 12:24:27 cwd=/var/spool/exim 3 args: /usr/sbin/exim -Mc 1mfg6c-0001fe-Tt
2021-10-27 12:24:27 SSL_write: (from mail-oln040092067035.outbound.protection.outlook.com (EUR02-AM5-obe.outbound.protection.outlook.com) [40.92.67.35]:31446) syscall: Connection reset by peer
2021-10-27 12:24:27 SMTP connection from mail-oln040092067035.outbound.protection.outlook.com (EUR02-AM5-obe.outbound.protection.outlook.com) [40.92.67.35]:31446 closed by QUIT
2021-10-27 12:24:27 1mfg6c-0001fe-Tt => marwan  R=virtual_user T=dovecot_virtual_delivery C="250 2.0.0  OGFLINsoeWH4GAAATzqFDA Saved"
2021-10-27 12:24:27 1mfg6c-0001fe-Tt Completed

[COLOR=rgb(226, 80, 65)]note: our mail server mails is been replaced with: xx@domain.com ----- one more thing I've tried to send a test email from xx@outlook.com to 2 of our same mail servers "x1@domain.com", "x2@domain.com" x1@domain.com received the mail instantly x2@domain.com received the mail after 3 hours !! from where is the delay issue here? is it from our mail server or from outlook ??? Notes : [QUOTE] note1: track delivery is not showing receiving these emails until I actually received it note2: in WHM, Mail queue is not showing it note3: I've tested to send emails from Gmail / Yahoo to our mail server, and there's almost no delay, maybe 1 or 2 minutes to receive it and that's normal and ok with us
Thanks and waiting for your feedback

cPanelAnthony

October 27, 2021 14:43

Hello! If the first entry in the exim_mainlog for this transaction is from 12:24 PM, but the email was sent at 9:43 AM, it doesn't sound like it's an issue on your server. It appears your server literally didn't receive that email until 12:24 PM. If there was an issue on your server, we might expect to see the email hit the server around 9:43 AM, but then get frozen. Are you only having these issues with Hotmail and Outlook? How long have you had these delays?

MotazHakim

October 27, 2021 20:06

Hello Thanks for your reply i only face this problem from outlook and hotmail and this issue wasn"t there couple days ago !! When i installed cpanel i"ve test sending and receiving from all known providers and all emails are received within 2 min maximum!! i"ve sent another test email From outlook at 12:44pm and received it at 7:40pm !! So thats a 7 hours delay !! and theres Also still emails i sent From outlook at 9am and didnt received it yet!! This delay issue is so random if i sent couple emails from outlook i might receive one within a minute or 2 And the second one Not yet received. you are saying the issue isnt from our server!!? So what should we do to fix the delay issue !! And hoW to make sure its not from our server ?

October 27, 2021 20:12

Could you please open a support ticket using the link in my signature so we can investigate? Please update me with the ticket ID once you have it so I can keep track. Thanks!

October 28, 2021 07:56

Thanks for your reply Support ticket opened #94378121

Delayed email received from @outlook / @hotmail

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