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Messages - Darkanoid

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1
Yes but now I get the report that im blacklisted. Funny part is that my ip in not in any MS banlist at testconnectivity.microsoft.com
More people are reporting the same.

2
Oh I was to fast.
Again same problem. So its not solved yet.
I dont think anyone has a clue what it is.

3
Yeah I know but when you look at https://testconnectivity.microsoft.com/ there are no problems. Also allot of other people are experiencing this starting from saturday.

At this time it works for me, but there are still people complaining.

http://answers.microsoft.com/en-us/outlook_com/forum/oemail-osend/451-444-temporary-server-error-please-try-again/6f8f7b76-34c5-416c-a0fe-81867843f7eb

4
Looks like it  ;D

Lets see how fast MS will pick this up.

5
No all are based in Germany but senders mail are .nl tld's
Yours?

6
Yes I have seen those to.  ;D
It seems that it is a certificate issue with microsoft. Also more people are experiencing the same.

My little brother even suggested a man in the middle attack.

7
UPDATE

I have replaced my certificates and when I did that I restarted postfix and was able to catch the following.

Code: [Select]
Nov 20 19:31:40 4 postfix/smtp[13872]: certificate verification failed for ***-com.mail.protection.outlook.com[213.199.180.170]:25: untrusted issuer /C=IE/O=Baltimore/OU=CyberTrust/CN=Baltimore CyberTrust Root
Nov 20 19:31:40 4 postfix/smtp[13876]: certificate verification failed for ***b-nl.mail.protection.outlook.com[213.199.154.106]:25: untrusted issuer /C=IE/O=Baltimore/OU=CyberTrust/CN=Baltimore CyberTrust Root
Nov 20 19:31:40 4 postfix/smtp[13875]: certificate verification failed for****t-com.mail.protection.outlook.com[213.199.180.170]:25: untrusted issuer /C=IE/O=Baltimore/OU=CyberTrust/CN=Baltimore CyberTrust Root
Nov 20 19:31:41 4 postfix/smtp[13872]: 3F73DC3458: host ***t-com.mail.protection.outlook.com[213.199.180.170] said: 451 4.4.4 Temporary server error. Please try again later ATTR5 (in reply to MAIL FROM command)
Nov 20 19:31:41 4 postfix/smtp[13876]: 63DFBC3CCB: host ****b-nl.mail.protection.outlook.com[213.199.154.106] said: 451 4.4.4 Temporary server error. Please try again later ATTR5 (in reply to MAIL FROM command)
Nov 20 19:31:41 4 postfix/smtp[13877]: 716E4C3CCC: host ****l.mail.protection.outlook.com[213.199.154.106] said: 451 4.4.4 Temporary server error. Please try again later ATTR5 (in reply to MAIL FROM command)
Nov 20 19:31:41 4 postfix/smtp[13875]: 556B1C3B93: host ****-com.mail.protection.outlook.com[213.199.180.170] said: 451 4.4.4 Temporary server error. Please try again later ATTR5 (in reply to MAIL FROM command)


8
To add..

I always have problems with rebuilding postfix and amavis. Everytime I have permissions errors with logs.
Have to manually chmod and create the log path/directory for clamav.
After that most of the time it works good.

Occuring on hyper-v and openvz VMs with Centos panel

9
Postfix / Re: Lost connection while receiving the initial greeting
« on: November 20, 2016, 01:10:31 PM »
Cannot see your screens

10
Postfix / Re: 365 servers cannot be reached. (no ban)
« on: November 20, 2016, 12:30:06 PM »
Another strange issue with sending to 365 mail servers from a centospanel server.
In the log it shows it is delivered but it never reaches the inbox of the 365 recipient,



Code: [Select]
Nov 20 13:22:51 100 postfix/smtpd[8710]: 6FD9E601C4: client=localhost[127.0.0.1], sasl_method=LOGIN, ssl_username=info@***.wtf
Nov 20 13:22:51 100 postfix/cleanup[8716]: 6FD9E601C4: message-id=<4570363e9f76068003a945a18cc25b5a@***.wtf>
Nov 20 13:22:51 100 postfix/qmgr[1668]: 6FD9E601C4: from=<info@****.wtf>, size=524, nrcpt=1 (queue active)
Nov 20 13:22:51 100 postfix/smtpd[8710]: disconnect from localhost[127.0.0.1]
Nov 20 13:22:51 100 postfix/smtpd[8710]: connect from unknown[185.125.6.105]
Nov 20 13:22:53 100 postfix/smtp[8717]: 6FD9E601C4: to=<daniel@*****.nl>, relay=****.mail.protection.outlook.com[213.199.154.138]:25, delay=1.9, delays=0.05/0.04/0.2/1.6, dsn=2.6.0, status=sent (250 2.6.0 <4570363e9f76068003a945a18cc25b5a@****.wtf> [InternalId=54335631262498, Hostname=VI1PR07MB1088.eurprd07.prod.outlook.com] 6892 bytes in 0.362, 18.578 KB/sec Queued mail for delivery) Nov 20 13:22:53 100 postfix/qmgr[1668]: 6FD9E601C4: removed

11
I did multiple times.
I had to manually uncomment things in the main.cf to make it work again.

12
Hello everyone.
I found problems reaching Microsoft 365 mail servers.
The following error occures:
Code: [Select]
Nov 20 12:57:12 4 postfix/smtp[1592]: EED7AC1A5C: to=<p***@****.com>, relay=***-com.mail.protection.outlook.com[213.199.180.170]:25, delay=96174, delays=96158/0/15/0.26, dsn=4.4.4, status=deferred (host *****-com.mail.protection.outlook.com[213.199.180.170] said: 451 4.4.4 Temporary server error. Please try again later ATTR5 (in reply to MAIL FROM command))
I can send mail to Gmail/Hotmail/Outlook.com/Live and receive it.

Also the problem occures on other Centospanel servers.

Could it be that I need a real SSL certificate and not self signed?
When I test it on testconnectivity.microsoft.com there are no problems. Everything is in the green! (No ban)
All rbl's in the green.

Maybe the *.mail.protection.outlook.com having problems with selfsigned certificates?

13
Does your master.cf in /etc/postfix looks like this?

Code: [Select]
smtp      inet  n       -       n       -       -       smtpd
  -o content_filter=smtp-amavis:127.0.0.1:10024
  -o receive_override_options=no_address_mappings
#
## Enable SMTP on port 587 only for authenticated/TLS clients
submission inet n       -       n       -       -       smtpd
  -o smtpd_enforce_tls=yes
  -o smtpd_sasl_auth_enable=yes
  -o smtpd_client_restrictions=permit_sasl_authenticated,reject

## Enable SMTP on port 465 only for authenticated/SSL clients
smtps     inet  n       -       n       -       -       smtpd
  -o smtpd_tls_wrappermode=yes
  -o smtpd_sasl_auth_enable=yes
  -o smtpd_client_restrictions=permit_sasl_authenticated,reject

14
I am having the same issue. After a working setup. I will try it again this weekend and look in the logs deeper.

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