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I know there have been similar threads, but either are they dead or not solving my problem.
Use Case:
Until now we have used PLESK to manage our mails in the organization,
but as part of a startup program at microsoft, we got access to 10 licenses/users.
Sadly 10 users aren't enough for all our mails and Microsoft restricts the usage of mails in regards of bulk messaging.
That in combination with our automated system mails from our API, will sadly not work.
By that we're in need of a "Hybrid/Smarthost" solution.
What I have done so far:
is to set up CONNECTORS in the Exchange dashboard.
- One going from our system to Office 365
- One from Office 365 to our system.
As far as I can tell this is working great.
Incoming mails that aren't existing in Office 365 are forwarded to our system.
In the POSTFIX config (main.cf) I have added:
and the file "relay_by_sender.db" (created via postmap) contains:
In other words selected domains are relayed through Office 365, while no-reply isn't and therefor going out by our SMTP/Postfix.
So far so good. We're now able to send and receive mails on both Office 365 and our own services.
The only problem left is,
that I'm not able to send mails from a mail on my local server to one existing in Office 365. The other way around (from office to mine) is working fine.
I guess it's more or less because of the "virtual_mailbox_*".
I have read on some threads around on the internet, that they suggest to comment :
commenting these I was able to send from my local server to Office 365.
BUT... now it's no longer working from the outside to the local one.
Trying to send mails from outside to an email existing on the local server, gets now rejected with an error message:
The error mail I get from Microsoft contains:
Maybe someone here has a suggestion what &/or that I could try or perhaps who even was in the same situation and found a solution.
Already many thanks in advance to everyone commenting/responding
Regards
Pierre
I know there have been similar threads, but either are they dead or not solving my problem.
Use Case:
Until now we have used PLESK to manage our mails in the organization,
but as part of a startup program at microsoft, we got access to 10 licenses/users.
Sadly 10 users aren't enough for all our mails and Microsoft restricts the usage of mails in regards of bulk messaging.
That in combination with our automated system mails from our API, will sadly not work.
By that we're in need of a "Hybrid/Smarthost" solution.
What I have done so far:
is to set up CONNECTORS in the Exchange dashboard.
- One going from our system to Office 365
- One from Office 365 to our system.
As far as I can tell this is working great.
Incoming mails that aren't existing in Office 365 are forwarded to our system.
In the POSTFIX config (main.cf) I have added:
Code:
sender_dependent_relayhost_maps = hash:/etc/postfix/relay_by_sender
Code:
no-reply@example.com DUNNO
@example.com [ms.protection...]:25In other words selected domains are relayed through Office 365, while no-reply isn't and therefor going out by our SMTP/Postfix.
So far so good. We're now able to send and receive mails on both Office 365 and our own services.
The only problem left is,
that I'm not able to send mails from a mail on my local server to one existing in Office 365. The other way around (from office to mine) is working fine.
I guess it's more or less because of the "virtual_mailbox_*".
I have read on some threads around on the internet, that they suggest to comment :
Code:
virtual_mailbox_domains = $virtual_mailbox_maps, hash:/var/spool/postfix/plesk/virtual_domains
virtual_alias_maps = $virtual_maps, hash:/var/spool/postfix/plesk/virtual
virtual_mailbox_maps = hash:/var/spool/postfix/plesk/vmailboxcommenting these I was able to send from my local server to Office 365.
BUT... now it's no longer working from the outside to the local one.
Trying to send mails from outside to an email existing on the local server, gets now rejected with an error message:
Code:
postfix/smtpd[1658807] NOQUEUE: reject: RCPT from mail-.outbound.protection.outlook.com554 5.7.1 <xyz@example.com>: Relay access denied;
Code:
550 5.7.367 Remote server returned not permitted to relay -> 554 5.7.1 <xyz@example.com>: Relay access deniedMaybe someone here has a suggestion what &/or that I could try or perhaps who even was in the same situation and found a solution.
Already many thanks in advance to everyone commenting/responding
Regards
Pierre
