The Domino SMTP service, or SMTP Server task, runs the SMTP listener, which checks for incoming SMTP connections and messages. SMTP messages can originate from any Internet host or another Domino Server in your domain. All ini keys which will affect SMTP can be found in this section.

iniTag

SMTP_NO_MAP_PRIVATE Controls the Sensitivity Header in SMTP mails

MailLeaveSessionOpen Leave mail sessions open between mail servers

MailTimeout Specifies the number of days after which the server returns undelivered mail to the sender

MIME_Save_Convert_Failures Copy documents to a separate database called CFDB.NSF where MIME Convertion failed.

RouterFallbackNonTLS Enables fall back to a connection not using SSL / TLS when a error orrour.

SMTPDenyMailToGroups Specify whether to allow mail to be sent to a group name returned during directory lookups.

SMTPDenyNotUniqueRCPT Specify whether to reject ambiguous names that are returned during directory lookups.

SMTPErrorLimit Drop an SMTP connection when the error count for that connection exceeds an administrator defined number of errors.

SMTPExpandDNSBLStats Setting to generate DNS Blacklist Filter statistics for each connecting host found in a DNS blacklist site.

SMTPGreeting Specifies a text message sent to SMTP clients when they connect to the SMTP server.

SMTPLookupNoDircat Determines if SMTP used directory catalog lookups.

SMTPMaxOutbMsgSize Can be used to control if a message should be send after MIME conversion or not.

SMTPMaxSessions Restrict the number of inbound SMTP sessions

SMTPMTA_Avoid_GMTOffset will cause SMTP MTA to preserve sender timezone in SMTP header rather than a GMT offset.

SMTPMTA_Enable_FIFO Changes SMTP MTA processing of outbound mail in SMTP.BOX so it is FIFO

SMTPNoVersionInRcvdHdr

SMTPRelayHostsandDomains Determines the behaviour of SMTP when it resolves conflicts in allow and deny lists in the SMTP inbound relay controls.

SMTPSmartHostAllDisableGroupExpansion Allowed the ability to disable group expansion when Smarthost is enabled for all recipients in the local internet domain.

SMTPStrictInboundAddressAllowDenyCheck Changes the way allow/deny checking operates.

SMTPTranslateAddressesPreserve822 Reserve the original internet address in Inetxxx items.