Knowledge base
smtp-validate-addressesdirectiveHow strictly submitted envelope and recipient addresses are checked against the standard.strict-email-addressesdirectiveWhether addresses must conform strictly to the standard; the 5.16 replacement for the documented validate-envelope and validate-recipient.dsn-advertiseWritten by the HubdirectiveWhether the built-in SMTP server advertises the DSN extension, letting submitting clients request notifications per message.dsn-notifyWritten by the HubdirectiveDefault events that produce a delivery status notification: never, on failure, on success, on delay — or a combination.dsn-retWritten by the HubdirectiveWhether a notification carries the whole original message or only its headers.ignore-dotdirectiveTreat end of input, rather than a lone dot, as the end of a message read from standard input.rabbitmq-dsndirectiveWhere MailerQ publishes the bounce notifications it generates itself.smtp-maxsizeWritten by the HubdirectiveMaximum size of a message the intake will accept, announced to clients in the SMTP greeting.smtp-validate-addressdirectiveAccepted by the binary; the vendor documents this spelling while the help output prints the plural.spamassassin-hostdirectiveAddress of a SpamAssassin daemon used to score incoming mail; empty, so no scoring happens.spamassassin-portdirectivePort of the SpamAssassin daemon; ships with the standard 783.validate-envelopedirectiveAccepted by the binary and documented with a default of strict, but superseded in this build by strict-email-addresses.validate-recipientdirectiveThe recipient-side twin of validate-envelope, in the same superseded state.dsnqueueWhere generated delivery notifications are published; shipped pointing at the sending queue.Email previewWritten by the Hubconsole screenRenders messages from the live stream — and pulls their tracking pixels while doing it.mimecriticalWritten by the Hubmessage propertyThe full message as a MIME string — or, as an object, a specification for Mimify to build one from.datamessage propertyValues substituted into {$name} placeholders in the subject, the addresses and the body — and the switch that turns substitution on at all.dsnmessage propertyWhich events produce a notification for this message, how much of it is returned, and the identifiers to quote.forcemessage propertyProceed with delivery even when conversion or validation produced errors.headersmessage propertyInstructions to remove, prepend, append, replace or update headers of the message.inlinecssmessage propertyConverts stylesheet rules into inline style attributes before sending.x-mq-dsn-envidemail headerAn identifier quoted back in any notification about this message.x-mq-dsn-notifyemail headerWhich events produce a delivery notification for this message — never, on failure, on success, on delay.x-mq-dsn-orcptemail headerThe recipient address to quote in a notification, when it differs from the delivery address.x-mq-dsn-retemail headerWhether a notification carries the whole message or only its headers.x-mq-inlinecssemail headerMoves CSS rules into style attributes before sending.Personalisation faileddelivery statePlaceholders could not be filled from the message's data.Responsive Email rendering faileddelivery stateA message given as a specification could not be turned into MIME.Our own faultimportantdelivery resultThe message could not be sent because something about it was wrong.Build MIME from partsWritten by the HubtoolA MIME builder, for senders that would otherwise assemble multipart messages by hand.