Hi, thank you Viktor, i deleted the .db file.
i reread the docs and removed all my previous changes and started over.
Wietse, thanks for the tip "relay_recipient_maps"
My old config was :
smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated,
reject_unauth_destination
transport_maps = hash:/etc/postfix/maps/transport
/etc/postfix/maps/transport .....
darwin.eeb.uconn.edu smtp:[darwin.eeb.uconn.edu]
My new config is :
smtpd_recipient_restrictions = reject_unknown_recipient_domain,
reject_unverified_recipient, permit_mynetworks, permit_sasl_auth
enticated, reject_unauth_destination
relay_recipient_maps = mysql:/etc/postfix/files/mysql_pn.cf
the transport stuff was left untouched.
RAN systemctl reload postfix
tested
[root@mta4 postfix]# telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 mta4.uits.uconn.edu ESMTP Postfix (2.10.1)
ehlo uconn.edu
250-mta4.uits.uconn.edu
250-PIPELINING
250-SIZE 31457280
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
mail from:[email protected]
250 2.1.0 Ok
rcpt to:[email protected]
450 4.1.1 <[email protected]>: Recipient address rejected: unverified
address: host darwin.eeb.uconn.edu[137.99.139.139] said: 550 5.1.1
<[email protected]>: Recipient address rejected: User unknown in
local recipient table (in reply to RCPT TO command)
rcpt to:[email protected]
250 2.1.5 Ok
quit
221 2.0.0 Bye
I think it's working as desired, only one thing I can't understand.
My server mta4 gave the 450 4.1.1 and server Darwin.eeb.uconn.edu gave 550
5.1.1, so why is it taking so long to get an NDR ?
[ I did another test with my outlook client and got same response as seen here
from O365 message trace details]
Reason: [{LED=450 4.1.1 <[email protected]>: Recipient address
rejected: unverified address: host darwin.eeb.uconn.edu[137.99.139.139] said:
550 5.1.1 <[email protected]>: Recipient address rejected: User
unknown in local recipient table (in reply to RCPT TO
command)};{MSG=};{FQDN=smtp.uconn.edu};{IP=137.99. OutboundProxyTargetIP:
137.99.25.243. OutboundProxyTargetHostName: smtp.uconn.edu
Is it as simple as changing this parameter in main.cf ?
unverified_recipient_defer_code (default: 450)
-ANGELO FAZZINA
ITS Service Manager:
Spam and Virus Prevention
Mass Mailing
G Suite/Gmail
[email protected]
University of Connecticut, ITS, SSG, Server Systems
860-486-9075
-----Original Message-----
From: [email protected] <[email protected]> On
Behalf Of Viktor Dukhovni
Sent: Wednesday, November 7, 2018 4:55 PM
To: postfix users <[email protected]>
Subject: Re: looking for any options to better deal with mail looping
> On Nov 7, 2018, at 3:26 PM, Fazzina, Angelo <[email protected]> wrote:
>
> relay_recipient_maps = mysql:/etc/postfix/files/mysql_pn.cf
>
> I did a test
> postmap /etc/postfix/files/mysql_pn.cf
There's no point in trying to "postmap" MySQL, LDAP, PosgreSQL, "pcre",
"regexp", ...
tables.
Only tables that have an on-disk *indexed* format need "postmap":
- cdb
- btree
- hash
- lmdb
- dbm (obsolete)
- sdbm (obsolete)
--
Viktor.
