Well, first, this is not an issue with the wordpress-software. Its an issue with the mailserver from wordpress.org.
I haven't found another way to contact a suitable person, so i post it here :-)
In case I#m wrong here with this topic, so please tell me, who I can contact for.
Dear wordpress.org, your mailserver ist not configured correctly. I dont receive any mails from wp.org. So i tailed my maillog and grepped for "wordpress" and found the following messages....
postfix/smtpd: warning: 18.104.22.168: address not listed for hostname wordpress.org postfix/smtpd: NOQUEUE: reject: RCPT from unknown[22.214.171.124]: 450 4.7.1 Client host rejected: cannot find your hostname, [126.96.36.199]; from=<firstname.lastname@example.org> to=<email@example.com> proto=ESMTP helo=<web13.luv.wordpress.org>
This is effecting mails from plugin-repository, this forum and I don't know what else. And yes, this is a misconfiguration in your mailservers, not in mine. I also made a hostlookup by myself and found the following.
host wordpress.org wordpress.org has address 188.8.131.52 wordpress.org has address 184.108.40.206 wordpress.org mail is handled by 10 mail.wordpress.org. host mail.wordpress.org mail.wordpress.org has address 220.127.116.11 mail.wordpress.org has address 18.104.22.168 host web13.luv.wordpress.org web13.luv.wordpress.org has address 22.214.171.124
I hope this will be fixed as soon as possible, because I am not able to receive any mails from you, there all rejected.