1 `banner`: `<string>` ('default =' `ESMTP Proxmox`)::
5 `before_queue_filtering`: `<boolean>` ('default =' `0`)::
7 Enable before queue filtering by pmg-smtp-filter
9 `conn_count_limit`: `<integer> (0 - N)` ('default =' `50`)::
11 How many simultaneous connections any client is allowed to make to this service. To disable this feature, specify a limit of 0.
13 `conn_rate_limit`: `<integer> (0 - N)` ('default =' `0`)::
15 The maximal number of connection attempts any client is allowed to make to this service per minute. To disable this feature, specify a limit of 0.
17 `dnsbl_sites`: `<string>` ::
19 Optional list of DNS white/blacklist domains (postfix option `postscreen_dnsbl_sites`).
21 `dnsbl_threshold`: `<integer> (0 - N)` ('default =' `1`)::
23 The inclusive lower bound for blocking a remote SMTP client, based on its combined DNSBL score (postfix option `postscreen_dnsbl_threshold`).
25 `dwarning`: `<integer> (0 - N)` ('default =' `4`)::
27 SMTP delay warning time (in hours). (postfix option `delay_warning_time`)
29 `filter-timeout`: `<integer> (2 - 86400)` ('default =' `600`)::
31 Timeout for the processing of one mail (in seconds) (postfix option `smtpd_proxy_timeout` and `lmtp_data_done_timeout`)
33 `greylist`: `<boolean>` ('default =' `1`)::
35 Use Greylisting for IPv4.
37 `greylist6`: `<boolean>` ('default =' `0`)::
39 Use Greylisting for IPv6.
41 `greylistmask4`: `<integer> (0 - 32)` ('default =' `24`)::
43 Netmask to apply for greylisting IPv4 hosts
45 `greylistmask6`: `<integer> (0 - 128)` ('default =' `64`)::
47 Netmask to apply for greylisting IPv6 hosts
49 `helotests`: `<boolean>` ('default =' `0`)::
51 Use SMTP HELO tests. (postfix option `smtpd_helo_restrictions`)
53 `hide_received`: `<boolean>` ('default =' `0`)::
55 Hide received header in outgoing mails.
57 `maxsize`: `<integer> (1024 - N)` ('default =' `10485760`)::
59 Maximum email size. Larger mails are rejected. (postfix option `message_size_limit`)
61 `message_rate_limit`: `<integer> (0 - N)` ('default =' `0`)::
63 The maximal number of message delivery requests that any client is allowed to make to this service per minute.To disable this feature, specify a limit of 0.
65 `ndr_on_block`: `<boolean>` ('default =' `0`)::
67 Send out NDR when mail gets blocked
69 `rejectunknown`: `<boolean>` ('default =' `0`)::
71 Reject unknown clients. (postfix option `reject_unknown_client_hostname`)
73 `rejectunknownsender`: `<boolean>` ('default =' `0`)::
75 Reject unknown senders. (postfix option `reject_unknown_sender_domain`)
77 `smtputf8`: `<boolean>` ('default =' `1`)::
79 Enable SMTPUTF8 support in Postfix and detection for locally generated mail (postfix option `smtputf8_enable`)
81 `spf`: `<boolean>` ('default =' `1`)::
83 Use Sender Policy Framework.
85 `verifyreceivers`: `<450 | 550>` ::
87 Enable receiver verification. The value specifies the numerical reply code when the Postfix SMTP server rejects a recipient address. (postfix options `reject_unknown_recipient_domain`, `reject_unverified_recipient`, and `unverified_recipient_reject_code`)