Re: What am I missing? DNSBL on submission port?

2019-10-31 Thread Bill Cole
On 31 Oct 2019, at 19:52, Andrew Sullivan wrote: Hi, I _know_ I am overlooking something, and I need a clue-bat. I use postscreen on the SMTP (25) port and smptd on the submission port; the latter requires authentication via dovecot. This usually works except every now and then when sending m

What am I missing? DNSBL on submission port?

2019-10-31 Thread Andrew Sullivan
Hi, I _know_ I am overlooking something, and I need a clue-bat. I use postscreen on the SMTP (25) port and smptd on the submission port; the latter requires authentication via dovecot. This usually works except every now and then when sending mail, almost always from hotel networks (where I sp

Re: dual stack rbl

2019-10-31 Thread Wietse Venema
Jaroslaw Rafa: > Dnia 31.10.2019 o godz. 21:27:46 Benny Pedersen pisze: > > how will postfix handle connections if recipient domains see ip in > > rbl blacklist, will it be trying agin until all ips on recipient > > domain is tryed ? > > > > does it make sense ? > > > > will first reject just win

Re: dual stack rbl

2019-10-31 Thread Wietse Venema
Benny Pedersen: > how will postfix handle connections if recipient domains see ip in rbl > blacklist, will it be trying agin until all ips on recipient domain is > tryed ? Postfix implements the SMTP protocol. If the remote SMTP server replies with 5XX, the sending Postfix system returns the re

Re: dual stack rbl

2019-10-31 Thread Jaroslaw Rafa
Dnia 31.10.2019 o godz. 21:27:46 Benny Pedersen pisze: > how will postfix handle connections if recipient domains see ip in > rbl blacklist, will it be trying agin until all ips on recipient > domain is tryed ? > > does it make sense ? > > will first reject just win on dual stack ipv4 / ipv6 host

Re: Cannot sign with DKIM on same-server web and mail

2019-10-31 Thread Jaroslaw Rafa
Dnia 31.10.2019 o godz. 12:16:56 linkcheck pisze: > > What changes to main/master do I need to make in order to DKIM sign all mail > once only, preferably before spamassassin? Not long ago I asked a similar question here. The best answer is to use spamassassin as a milter, not as a post-queue co

dual stack rbl

2019-10-31 Thread Benny Pedersen
how will postfix handle connections if recipient domains see ip in rbl blacklist, will it be trying agin until all ips on recipient domain is tryed ? does it make sense ? will first reject just win on dual stack ipv4 / ipv6 hostname ? i ask this since i like to know what to do with that probl

Cannot sign with DKIM on same-server web and mail

2019-10-31 Thread linkcheck
I've looked online for solutions to this problem (including postfix and sendmail documentation) but with no luck so far. I've been running a Postfix mail server for several years (currently Linux Mint 18.1 (Ubuntu 16.4) with postfix 3.1.0) and implemented SPF, DKIM and DMARC a few years ago. All

Re: Postfix ignores smtpd_tls_security_level = encrypt ?

2019-10-31 Thread Viktor Dukhovni
> On Oct 31, 2019, at 10:58 AM, Ferdinand Goldmann > wrote: > > I need a Postfix (3.3) installation to only accept mails sent after STARTTLS, > so I've set smtpd_tls_security_level = encrypt in main.cf. However, Postfix > still allows sending mails withouth encryption. That's not correct. Post

Re: Postfix ignores smtpd_tls_security_level = encrypt ?

2019-10-31 Thread Wietse Venema
Ferdinand Goldmann: > Hi, > > I need a Postfix (3.3) installation to only accept mails sent after STARTTLS, > so I've set smtpd_tls_security_level = encrypt in main.cf. However, Postfix > still allows sending mails withouth encryption. I assume that you are talking about receiving emailwith Postf

Re: Postfix ignores smtpd_tls_security_level = encrypt ?

2019-10-31 Thread Bastian Blank
On Thu, Oct 31, 2019 at 03:58:03PM +0100, Ferdinand Goldmann wrote: > I need a Postfix (3.3) installation to only accept mails sent after STARTTLS, > so I've set smtpd_tls_security_level = encrypt in main.cf. However, Postfix > still allows sending mails withouth encryption. accept != send. Accep

Postfix ignores smtpd_tls_security_level = encrypt ?

2019-10-31 Thread Ferdinand Goldmann
Hi, I need a Postfix (3.3) installation to only accept mails sent after STARTTLS, so I've set smtpd_tls_security_level = encrypt in main.cf. However, Postfix still allows sending mails withouth encryption. Do the permit_mynetworks settings in smtpd_relay_restrictions and smtpd_recipient_restrict

Re: Avoidance of duplicate mails reg

2019-10-31 Thread Marvin Renich
* an...@ursc.gov.in [191031 09:00]: > > > We have migrated to a new domain yyy.com.  We also continue to receive > > > mails on old domain xxx.com. > > > > > > When a sender sends a mail to a...@xxx.com (old domain), mail is > > > received and delivered to user abcd.  Abcd when he replies to all

Re: Avoidance of duplicate mails reg

2019-10-31 Thread Wietse Venema
an...@ursc.gov.in: Content-Description: Plaintext Message > - Message from Wietse Venema - > ? ? Date: Thu, 31 Oct 2019 08:20:44 -0400 (EDT) > ? ? From: Wietse Venema > Reply-To: Postfix users > Subject: Re: Avoidance of duplicate mails reg > ? ? ? To: Postfix users > > > an...@

Re: Avoidance of duplicate mails reg

2019-10-31 Thread anant
- Message from Wietse Venema -     Date: Thu, 31 Oct 2019 08:20:44 -0400 (EDT)     From: Wietse Venema Reply-To: Postfix users Subject: Re: Avoidance of duplicate mails reg       To: Postfix users an...@ursc.gov.in: Hi, We have migrated to a new domain yyy.com.  We also contin

Re: Avoidance of duplicate mails reg

2019-10-31 Thread anant
- Message from Wietse Venema -     Date: Thu, 31 Oct 2019 08:20:44 -0400 (EDT)     From: Wietse Venema Reply-To: Postfix users Subject: Re: Avoidance of duplicate mails reg       To: Postfix users an...@ursc.gov.in: Hi, We have migrated to a new domain yyy.com.  We also continu

Re: Avoidance of duplicate mails reg

2019-10-31 Thread Wietse Venema
an...@ursc.gov.in: > Hi, > > We have migrated to a new domain yyy.com. We also continue to receive > mails on old domain xxx.com. > > When a sender sends a mail to a...@xxx.com (old domain), mail is > received and delivered to user abcd. Abcd when he replies to all (his > from email addre

Avoidance of duplicate mails reg

2019-10-31 Thread anant
Hi, We have migrated to a new domain yyy.com. We also continue to receive mails on old domain xxx.com. When a sender sends a mail to a...@xxx.com (old domain), mail is received and delivered to user abcd. Abcd when he replies to all (his from email address will be a...@yyy.com [new doma