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Old 11-14-2019, 08:35 AM   #1
KamilKrK
LQ Newbie
 
Registered: Oct 2019
Posts: 7

Rep: Reputation: Disabled
Posftix - multiple relay error

Hello all,

I am trying to configure the postfix so that depending on which internal domain he got the message he sent to the appropriate smtp server. I do it on the example of gmail about O365. This is my configuration:

Code:
/etc/postfix/Main.cf
mynetworks = 127.0.0.0/8, [::ffff:127.0.0.0]/104, [::1]/128, 192.168.1.0/24, 
mydestination = $myhostname, smtprelay, localhost.localdomain, , localhost, localhost.o365.local, localhost.gmail.local
# default relayhost setting
relayhost = [smtp.gmail.com]:587
# sender-dependent sasl authentication
smtp_sender_dependent_authentication = yes
sender_dependent_relayhost_maps = hash:/etc/postfix/sender_relay
# smtp authentication settings
smtp_use_tls = yes
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options = noanonymous
smtp_tls_security_level = encrypt
smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
smtp_sasl_mechanism_filter = plain
transport_maps = hash:/etc/postfix/transport
--------------------------------------------------------------------------------------------------------------------------
/etc/postfix/sasl_passwd 
gmail@gmail.local   account1@gmail.com:Start321!
o365@o365.local  account1@mydomain.com:Start321!
------------------------------------------------------------------------------------------------------------------------
/etc/postfix/sender_relay 
account1@gmail.com [smtp.gmail.com]:587
account1@mydomain.com [smtp.office365.com]:587
----------------------------------------------------------------------------------------------------------------------
/etc/postfix/transport 
gmail.local     smtp:[smtp.gmail.com]:587
o365.local      smtp:[smtp.office365.com]:587
At this time, only sending from gmail@gmail.local works and for O365 there is such an error:

Code:
321D0100A34: from=<o365@o365.local>, size=422, nrcpt=1 (queue active)
Nov 14 10:30:51 smtprelay postfix/smtp[6261]: 321D0100A34: SASL authentication failed; server smtp.gmail.com[173.194.73.108] said: 535-5.7.8 Username and Password not accepted. Learn more at?535 5.7.8  https://support.google.com/mail/?p=BadCredentials i22sm2015187ljg.94 - gsmtp
Nov 14 10:30:51 smtprelay postfix/smtp[6261]: connect to smtp.gmail.com[2a00:1450:4010:c0d::6d]:587: Network is unreachable
Nov 14 10:30:51 smtprelay postfix/smtp[6261]: 321D0100A34: to=<myemail@mydomain.com>, relay=none, delay=0.43, delays=0.07/0/0.36/0, dsn=4.4.1, status=deferred (connect to smtp.gmail.com[2a00:1450:4010:c0d::6d]:587: Network is unreachable)
After hashing the entry #relayhost = [smtp.gmail.com]:587 in main.cf, nothing works and every message wants to come out via O365 but he fails.

Code:
Nov 14 10:16:08 smtprelay postfix/qmgr[5995]: 31D7F100A34: from=<o365@o365.local>, size=422, nrcpt=1 (queue active)
Nov 14 10:16:38 smtprelay postfix/smtp[6013]: connect to xxx.mail.protection.outlook.com[104.47.1.36]:25: Connection timed out

Nov 14 10:15:00 smtprelay postfix/qmgr[5995]: 560EF100A34: from=<gmail@gmail.local>, size=437, nrcpt=1 (queue active)
Nov 14 10:15:30 smtprelay postfix/smtp[6013]: connect to xxx.mail.protection.outlook.com[104.47.0.36]:25: Connection timed out
What's wrong with the configuration?
 
Old 11-14-2019, 08:56 AM   #2
TB0ne
LQ Guru
 
Registered: Jul 2003
Location: Birmingham, Alabama
Distribution: SuSE, RedHat, Slack,CentOS
Posts: 26,636

Rep: Reputation: 7965Reputation: 7965Reputation: 7965Reputation: 7965Reputation: 7965Reputation: 7965Reputation: 7965Reputation: 7965Reputation: 7965Reputation: 7965Reputation: 7965
Quote:
Originally Posted by KamilKrK View Post
Hello all,
I am trying to configure the postfix so that depending on which internal domain he got the message he sent to the appropriate smtp server. I do it on the example of gmail about O365. This is my configuration:
Code:
/etc/postfix/Main.cf
mynetworks = 127.0.0.0/8, [::ffff:127.0.0.0]/104, [::1]/128, 192.168.1.0/24, 
mydestination = $myhostname, smtprelay, localhost.localdomain, , localhost, localhost.o365.local, localhost.gmail.local
# default relayhost setting
relayhost = [smtp.gmail.com]:587
# sender-dependent sasl authentication
smtp_sender_dependent_authentication = yes
sender_dependent_relayhost_maps = hash:/etc/postfix/sender_relay
# smtp authentication settings
smtp_use_tls = yes
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options = noanonymous
smtp_tls_security_level = encrypt
smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
smtp_sasl_mechanism_filter = plain
transport_maps = hash:/etc/postfix/transport
--------------------------------------------------------------------------------------------------------------------------
/etc/postfix/sasl_passwd 
gmail@gmail.local   account1@gmail.com:Start321!
o365@o365.local  account1@mydomain.com:Start321!
------------------------------------------------------------------------------------------------------------------------
/etc/postfix/sender_relay 
account1@gmail.com [smtp.gmail.com]:587
account1@mydomain.com [smtp.office365.com]:587
----------------------------------------------------------------------------------------------------------------------
/etc/postfix/transport 
gmail.local     smtp:[smtp.gmail.com]:587
o365.local      smtp:[smtp.office365.com]:587
At this time, only sending from gmail@gmail.local works and for O365 there is such an error:

Code:
321D0100A34: from=<o365@o365.local>, size=422, nrcpt=1 (queue active)
Nov 14 10:30:51 smtprelay postfix/smtp[6261]: 321D0100A34: SASL authentication failed; server smtp.gmail.com[173.194.73.108] said: 535-5.7.8 Username and Password not accepted. Learn more at?535 5.7.8  https://support.google.com/mail/?p=BadCredentials i22sm2015187ljg.94 - gsmtp
Nov 14 10:30:51 smtprelay postfix/smtp[6261]: connect to smtp.gmail.com[2a00:1450:4010:c0d::6d]:587: Network is unreachable
Nov 14 10:30:51 smtprelay postfix/smtp[6261]: 321D0100A34: to=<myemail@mydomain.com>, relay=none, delay=0.43, delays=0.07/0/0.36/0, dsn=4.4.1, status=deferred (connect to smtp.gmail.com[2a00:1450:4010:c0d::6d]:587: Network is unreachable)
After hashing the entry #relayhost = [smtp.gmail.com]:587 in main.cf, nothing works and every message wants to come out via O365 but he fails.
Code:
Nov 14 10:16:08 smtprelay postfix/qmgr[5995]: 31D7F100A34: from=<o365@o365.local>, size=422, nrcpt=1 (queue active)
Nov 14 10:16:38 smtprelay postfix/smtp[6013]: connect to xxx.mail.protection.outlook.com[104.47.1.36]:25: Connection timed out
Nov 14 10:15:00 smtprelay postfix/qmgr[5995]: 560EF100A34: from=<gmail@gmail.local>, size=437, nrcpt=1 (queue active)
Nov 14 10:15:30 smtprelay postfix/smtp[6013]: connect to xxx.mail.protection.outlook.com[104.47.0.36]:25: Connection timed out
What's wrong with the configuration?
So you took the advice in your other (duplicate) thread about enabling transport mapping. Did you look at/think about the messages you're getting?? It's telling you very clearly that the user credentials aren't correct/accepted, and even gave you a link to look at. Did you look at it?

Also look up what the message is for O365; it's in the Microsoft knowlegebase.
 
  


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