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ToolVox® X3
Administrator Guide
Max size of a message
Thisoptionlimitsthesizeinbytesofamessagethatwillbedelivered,includingthemessage
envelopeinformation.Thislimitshouldbesethighenoughtosupportanyemailmessagesyour
userswillneedtobeabletosendorreceive.Thisoptioncorrelatestothemessage_size_limit
directiveanddefaultsto10,240,000.
Max number of messages in the active queue
Thisoptionlimitsthenumberofmessagesthatcanexistinthemessagequeueatanygiventime.It
correlatestotheqmgr_message_active_limitdirectiveanddefaultsto10,000.
Max number of in-memory recipients
Thisparameterlimitsthenumberofin-memoryrecipientdatastructures.Thismemorycontains
theshort-termdead list,whichindicatesadestinationwasunavailablewhenlastcontacted,among
otherthings.Thisoptioncorrelatestotheqmgr_message_recipient_limitdirectiveanddefaultsto
1000.
Min free space in the queue file system
Postxwillrefusemailifthelesystemonwhichthequeueislocatedhaslessavailablespacein
bytesthanthevaluesetinthisoption.Thisoptioncorrelatestothequeue_minfreedirectiveand
defaultsto0.
Max time after which stale lock is released
Thisoptioncongureshowoldanexternallocklemaybebeforeitisforciblyremoved.Thisoption
correlatestothestale_lock_timeanddefaultsto500seconds.
Time in seconds between attempts to contact a broken MDT
Thisoptionconguresthetimeinsecondsbetweenthequeuemanagerattemptstocontactan
unresponsivemaildeliverytransport.Thisoptioncorrelatestothetransport_retry_timeanddefaults
to60seconds.
SMTP server options
ThispageconguresthemajorityofoptionsthatdirectlyaffectthebehavioroftheSMTPserver
portionofPostx,specicallytheportionsthatimpacthowtheserverbehavestowardsanSMTP
clientthatconnectstotheserver.
SMTP greeting banner
WhenaclientconnectstoanSMTPserver,agreeting bannerwillbesenttotheclient(notethe
termclientinthiscontextisnottheenduser,butrathertheemailsoftwareprogramusedtomake
theconnection).Thisoptionconguresthetextthatwillfollowthestatuscodeinthebanner.Itis
possibletouseanumberofvariableexpansions,forexample,todisplaythespecicversionofthe
serversoftware,thoughPostxdoesnotincludetheversionbydefault.Ifconguringthisoptionto
beotherthanthedefault,youmustinclude$myhostnameatthestartofthisline,asitallowsPostx
toreportandrespondtoamailerloopratherthanoverloadthesystemwithmultipledeliveries.This
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