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Not Receiving Internet Mail
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Not Receiving Internet Mail - 8.Jun.2015 11:23:11 AM
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colinjack
Posts: 10
Joined: 5.Dec.2005
Status: offline
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I'm hoping for a sanity check here - maybe I'm standing to close to the trees? :) Our Exch2013 server has stopped accepting direct internet mail, NATed through from our firewall.. It can receive from our spamfilter on another network connected via VPN. Internal servers can connect and send mail using the internal IP. Mail trying to connect direct from outside our firewall fails. The NAT config on our firewall is fine - if I redirect it to a Linux box rather than the Exch2013 box on the same internal network it connects no problem. External mail connects to the Exch2013 server but then disconnects immediately: Connected to mail.mainline.co.uk. Escape character is '^]'. 421 4.3.2 Service not available Connection closed by foreign host. I have deleted the Receive Connector and created a new one: RunspaceId : 1456acb8-72a7-42a8-a2ca-f6085a4fc114 AuthMechanism : Tls, Integrated, BasicAuth, BasicAuthRequireTLS, ExchangeServer Banner : BinaryMimeEnabled : True Bindings : {0.0.0.0:25} ChunkingEnabled : True DefaultDomain : DeliveryStatusNotificationEnabled : True EightBitMimeEnabled : True BareLinefeedRejectionEnabled : False DomainSecureEnabled : True EnhancedStatusCodesEnabled : True LongAddressesEnabled : False OrarEnabled : False SuppressXAnonymousTls : False ProxyEnabled : False AdvertiseClientSettings : False Fqdn : EXCHANGE.mainline.local ServiceDiscoveryFqdn : TlsCertificateName : Comment : Enabled : True ConnectionTimeout : 00:10:00 ConnectionInactivityTimeout : 00:05:00 MessageRateLimit : Unlimited MessageRateSource : IPAddress MaxInboundConnection : 5000 MaxInboundConnectionPerSource : 20 MaxInboundConnectionPercentagePerSource : 2 MaxHeaderSize : 128 KB (131,072 bytes) MaxHopCount : 60 MaxLocalHopCount : 12 MaxLogonFailures : 3 MaxMessageSize : 35 MB (36,700,160 bytes) MaxProtocolErrors : 5 MaxRecipientsPerMessage : 200 PermissionGroups : AnonymousUsers, ExchangeServers, ExchangeLegacyServers PipeliningEnabled : True ProtocolLoggingLevel : None RemoteIPRanges : {0.0.0.0-255.255.255.255} RequireEHLODomain : False RequireTLS : False EnableAuthGSSAPI : False ExtendedProtectionPolicy : None LiveCredentialEnabled : False TlsDomainCapabilities : {} Server : EXCHANGE TransportRole : FrontendTransport SizeEnabled : Enabled TarpitInterval : 00:00:05 MaxAcknowledgementDelay : 00:00:30 AdminDisplayName : ExchangeVersion : 0.1 (8.0.535.0) Name : Exchange Frontend for Internet Mail DistinguishedName : CN=Exchange Frontend for Internet Mail,CN=SMTP Receive Connectors,CN=Protocols,CN=EXCHANGE,CN=Servers,CN=Exchange Administrative Group (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=MAINLINE,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=mainline,DC=local Identity : EXCHANGE\Exchange Frontend for Internet Mail Guid : f0a7492c-1e67-412b-89ec-f29d7512eb0d ObjectCategory : mainline.local/Configuration/Schema/ms-Exch-Smtp-Receive-Connector ObjectClass : {top, msExchSmtpReceiveConnector} WhenChanged : 08/06/2015 12:19:56 WhenCreated : 08/06/2015 11:49:22 WhenChangedUTC : 08/06/2015 11:19:56 WhenCreatedUTC : 08/06/2015 10:49:22 OrganizationId : OriginatingServer : datastore.mainline.local IsValid : True ObjectState : Unchanged No better. Windows Firewall is disabled on the Exch2013 server. I must be missing something, but what? Hopefully someone can spot something. Thanks Colin
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