Re: Not receiving mail from some legitimate domains

2018-03-14 Thread jlftl
Matus UHLAR - fantomas wrote > On 14.03.18 07:55, jlftl wrote: >>Alright, using postconf debug_peer_list appears to have identified the issue: >> >>Mar 14 14:03:10 enceladus postfix/smtpd[26760]: < >>n5.nabble.com[162.253.133.81]: MAIL FROM:< > bounces@.nabble > > SIZE=3488 >>Mar 14 14:03:10 ence

Re: Not receiving mail from some legitimate domains

2018-03-14 Thread Viktor Dukhovni
> On Mar 14, 2018, at 11:06 AM, Matus UHLAR - fantomas > wrote: > > 1. there's no need to configure the same option in master.cf than in the > main.cf, it's required when you want to change them. > > 2. submission and smtps SHOULD have "-o smtpd_tls_security_level = encrypt", > clients should

Re: Not receiving mail from some legitimate domains

2018-03-14 Thread Matus UHLAR - fantomas
On 14.03.18 07:55, jlftl wrote: Alright, using postconf debug_peer_list appears to have identified the issue: Mar 14 14:03:10 enceladus postfix/smtpd[26760]: < n5.nabble.com[162.253.133.81]: MAIL FROM: SIZE=3488 Mar 14 14:03:10 enceladus postfix/smtpd[26760]: > n5.nabble.com[162.253.133.81]: 530

Re: Not receiving mail from some legitimate domains

2018-03-14 Thread jlftl
Alright, using postconf debug_peer_list appears to have identified the issue: Mar 14 14:03:10 enceladus postfix/smtpd[26760]: > n5.nabble.com[162.253.133.81]: 250-enceladus..net Mar 14 14:03:10 enceladus postfix/smtpd[26760]: > n5.nabble.com[162.253.133.81]: 250-PIPELINING Mar 14 14:03:10 enceladu

Re: Not receiving mail from some legitimate domains

2018-03-12 Thread jlftl
Hi John, You are correct, this is my mistake. I went back through the logs, and this was NOT nabble. I attempted to register another account for the forum in order to generate the e-mail, and this server which issued the help command had coincidentally connected within a few seconds of nabble's

Re: Not receiving mail from some legitimate domains

2018-03-11 Thread John Fawcett
On 12/03/18 07:12, jlftl wrote: > Wietse Venema wrote >> jlftl: >>> Thank you very much for the responses! >>> >>> This is a small, personal setup with low traffic so I will definitely >>> explore using notify_classes to try to get more feedback on the failures. >>> >>> Remote server legitmacy - *.

Re: Not receiving mail from some legitimate domains

2018-03-11 Thread jlftl
Wietse Venema wrote > jlftl: >> Thank you very much for the responses! >> >> This is a small, personal setup with low traffic so I will definitely >> explore using notify_classes to try to get more feedback on the failures. >> >> Remote server legitmacy - *.dbsintl.net appears to be a third party

Re: Not receiving mail from some legitimate domains

2018-03-07 Thread Wietse Venema
jlftl: > Thank you very much for the responses! > > This is a small, personal setup with low traffic so I will definitely > explore using notify_classes to try to get more feedback on the failures. > > Remote server legitmacy - *.dbsintl.net appears to be a third party hosting > solution for smal

Re: Not receiving mail from some legitimate domains

2018-03-07 Thread jlftl
Thank you very much for the responses! This is a small, personal setup with low traffic so I will definitely explore using notify_classes to try to get more feedback on the failures. Remote server legitmacy - *.dbsintl.net appears to be a third party hosting solution for small businesses. In the

Re: Not receiving mail from some legitimate domains

2018-03-07 Thread Wietse Venema
John Fawcett: > > Mar 5 23:25:47 enceladus postfix/smtpd[5159]: connect from > > unknown[104.37.111.105] > > Mar 5 23:25:47 enceladus postfix/smtpd[5159]: disconnect from > > unknown[104.37.111.105] ehlo=1 mail=0/1 quit=1 commands=2/3 > Looks like the mail command gave an error. Bingo. The clien

Re: Not receiving mail from some legitimate domains

2018-03-07 Thread John Fawcett
On 06/03/18 19:12, jlftl wrote: > I have a server running Postfix (3.1.0-3ubuntu0.3) that has been in > production for a few months and is generally working well. However I've > been struggling to resolve an issue where some legitimate servers cannot > send inbound mail, where there appears to be