mails from external webpage through SMTP

[raitism]

I have webpage, which we use to send mails to internal and external contacts.

After we implemented Proxmox MGW, mail sending from this webpage not working. We receive two problems;

1. When try to send to internal contact - we receive code 250 2.7.0 BLOCKED.

2. When try to send to external contact - Relay access denied.


Probably I need to configure something in Proxmox MGW, to allow from this one webpage to send emails through Proxmox MGW.

I really need help.

 

[hata_ph]

How you configure your mail sending webpage? Using a relay host?

 

[raitism]

SMTP settings. As I understand it uses PHPMailer.

And Yes, on exchange server there is configured receive connector. Now all mail traffic is going through proxmox.

 

[hata_ph]

You are using another exchange server for the mail sending webpage?
Pls show the actual error message from proxmox mail gateway.

 

[raitism]

I was. Now my setup is like this:

All incoming and outgoing mail <--> Proxmox MGW <--> Microsoft Exchange Server

Before I had like this:

All incoming and outgoing mail <--> Microsoft Exchange Server.


The message, which I receive when I configure smtp settings on webpage:

Feb 18 10:05:08 proxmox postfix/smtpd[40117]: connect from server[IP address]
Feb 18 10:05:09 proxmox postfix/smtpd[40117]: 1B2855C1031: client=server[IP address]
Feb 18 10:05:09 proxmox postfix/cleanup[40936]: 1B2855C1031: message-id=<b02b92f8dba49c35c655e3786936e303@aptauja.domain.com>
Feb 18 10:05:09 proxmox postfix/qmgr[41860]: 1B2855C1031: from=<newsletter@domain.com>, size=1551, nrcpt=1 (queue active)
Feb 18 10:05:09 proxmox pmg-smtp-filter[41343]: 5C10405E4B9AB570683: new mail message-id=<b02b92f8dba49c35c655e3786936e303@aptauja.domain.com>#012
Feb 18 10:05:09 proxmox postfix/smtpd[40117]: disconnect from server[IP address] ehlo=1 mail=1 rcpt=1 data=1 rset=1 quit=1 commands=6
Feb 18 10:05:13 proxmox pmg-smtp-filter[41343]: 5C10405E4B9AB570683: SA score=1/5 time=3.813 bayes=undefined autolearn=no autolearn_force=no hits=AWL(-0.001),HTML_EXTRA_CLOSE(0.001),HTML_MESSAGE(0.001),KAM_LAZY_DOMAIN_SECURITY(1),KHOP_HELO_FCRDNS(0.399),SPF_HELO_NONE(0.001),SPF_NONE(0.001),URIBL_BLOCKED(0.001)
Feb 18 10:05:13 proxmox pmg-smtp-filter[41343]: 5C10405E4B9AB570683: notify <newsletter@domain.com> (rule: Test, 4AA915C1045)
Feb 18 10:05:13 proxmox pmg-smtp-filter[41343]: 5C10405E4B9AB570683: block mail to <raitis@domain.com> (rule: Test)
Feb 18 10:05:13 proxmox pmg-smtp-filter[41343]: 5C10405E4B9AB570683: processing time: 3.893 seconds (3.813, 0.012, 0)
Feb 18 10:05:13 proxmox postfix/lmtp[41535]: 1B2855C1031: to=<raitis@domain.com>, relay=127.0.0.1[127.0.0.1]:10024, delay=4.3, delays=0.38/0/0/3.9, dsn=2.7.0, status=sent (250 2.7.0 BLOCKED (5C10405E4B9AB570683))
Feb 18 10:05:13 proxmox postfix/qmgr[41860]: 1B2855C1031: removed

 

[hata_ph]

Are your Test rules blocking the email?

Feb 18 10:05:13 proxmox pmg-smtp-filter[41343]: 5C10405E4B9AB570683: notify <newsletter@domain.com> (rule: Test, 4AA915C1045)
Feb 18 10:05:13 proxmox pmg-smtp-filter[41343]: 5C10405E4B9AB570683: block mail to <raitis@domain.com> (rule: Test)
Feb 18 10:05:13 proxmox pmg-smtp-filter[41343]: 5C10405E4B9AB570683: processing time: 3.893 seconds (3.813, 0.012, 0)
Feb 18 10:05:13 proxmox postfix/lmtp[41535]: 1B2855C1031: to=<raitis@domain.com>, relay=127.0.0.1[127.0.0.1]:10024, delay=4.3, delays=0.38/0/0/3.9, dsn=2.7.0, status=sent (250 2.7.0 BLOCKED (5C10405E4B9AB570683))

 

[raitism]

Yes, looks like test rule took action before whitelist. Change priority. inernally received mail. Still cant to send external contact.

Feb 18 12:13:18 proxmox postfix/smtpd[43272]: connect from server[IP address]
Feb 18 12:13:18 proxmox postfix/smtpd[43272]: NOQUEUE: reject: RCPT from server[IP address]: 554 5.7.1 <raitis@gmail.com>: Relay access denied; from=<newsletter@domain.com> to=<raitis@gmail.com> proto=ESMTP helo=<aptauja.domain.com>
Feb 18 12:13:18 proxmox postfix/smtpd[43272]: disconnect from server[IP address] ehlo=1 mail=1 rcpt=0/1 rset=1 quit=1 commands=4/5

 

[Stoiko Ivanov]

* does the server with the newsletter software connect to the internal port of PMG?
* Is it's ip listed in the Trusted networks? (Configuration->Mail Proxy->Networks)?

that's the two most-likely reasons why you get the relay denied

 

[raitism]

* it connects to external port (25).

* No it wasn't. I listed it, but still it rejected. with the same error - Relay access denied.

 

[Stoiko Ivanov]

it connects to external port (25).

If you want to send outbound mail (your newsletter going to e-mails around the world) - it needs to connect to the internal port of PMG