1 `banner`: `<string>` ('default =' `ESMTP Proxmox`)::
5 `conn_count_limit`: `<integer> (0 - N)` ('default =' `50`)::
7 How many simultaneous connections any client is allowed to make to this service. To disable this feature, specify a limit of 0.
9 `conn_rate_limit`: `<integer> (0 - N)` ('default =' `0`)::
11 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.
13 `dnsbl_sites`: `<string>` ::
15 Optional list of DNS white/blacklist domains (see postscreen_dnsbl_sites parameter).
17 `dwarning`: `<integer> (0 - N)` ('default =' `4`)::
19 SMTP delay warning time (in hours).
21 `greylist`: `<boolean>` ('default =' `1`)::
25 `helotests`: `<boolean>` ('default =' `0`)::
29 `hide_received`: `<boolean>` ('default =' `0`)::
31 Hide received header in outgoing mails.
33 `maxsize`: `<integer> (1024 - N)` ('default =' `10485760`)::
35 Maximum email size. Larger mails are rejected.
37 `message_rate_limit`: `<integer> (0 - N)` ('default =' `0`)::
39 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.
41 `rejectunknown`: `<boolean>` ('default =' `0`)::
43 Reject unknown clients.
45 `rejectunknownsender`: `<boolean>` ('default =' `0`)::
47 Reject unknown senders.
49 `spf`: `<boolean>` ('default =' `1`)::
51 Use Sender Policy Framework.
53 `verifyreceivers`: `<450 | 550>` ::
55 Enable receiver verification. The value spefifies the numerical reply code when the Postfix SMTP server rejects a recipient address.