• RSS
  • Twitter
  • FaceBook

Exchange Server Forums

Forums | Register | Login | My Profile | Inbox | RSS RSS icon | My Subscription | My Forums | Address Book | Member List | Search | FAQ | Ticket List | Log Out

421.4.4.2 connection dropped due to socketerror

Users viewing this topic: none

Logged in as: Guest
  Printable Version
All Forums >> [Microsoft Exchange 2010] >> General >> 421.4.4.2 connection dropped due to socketerror Page: [1]
Login
Message << Older Topic   Newer Topic >>
421.4.4.2 connection dropped due to socketerror - 10.Mar.2011 1:21:27 PM   
mustafadogan

 

Posts: 1
Joined: 10.Mar.2011
Status: offline
Dear All,

I have a problem when I sending e-mail.

Queue Last Error

451.4.4.0 Primary target Ip address responded with "421.4.4.2 Connection dropped due to SocketError "Attempted failover to alternate host, but taht did not succeed. Either there are no alternate hosts, or delivery failed to all alternate hosts.

and I receive some e-mail error.


Delivery is delayed to these
recipients or groups:

user@domain.com.tr

RE

:

This message hasn't been delivered yet. Delivery will continue to be
attempted.

The server will keep trying to deliver this message for the next 1 days, 19
hours and 46 minutes. You'll be notified if the message can't be delivered by
that time.

(i know a little english sorry)
Post #: 1
RE: 421.4.4.2 connection dropped due to socketerror - 5.Apr.2011 10:34:26 AM   
damitha

 

Posts: 7
Joined: 13.Mar.2011
Status: offline
I have the same issue, "421 4.4.2 Connection dropped due to socketError"

Unable to send some emails for Yahoo. Stucked in queue..

Please advise to fix this.

(in reply to mustafadogan)
Post #: 2
RE: 421.4.4.2 connection dropped due to socketerror - 5.Apr.2011 10:44:02 AM   
de.blackman

 

Posts: 3542
Joined: 4.Apr.2005
From: Toronto, Canada
Status: offline
Do you have a reverse lookup for your MX record configured publicly? Some of these domains will not accept mail from a domain that they cannot do a reverse lookup on.

_____________________________

Ibrahim Benna - Microsoft Exchange MVP
Forum Moderator
Navantis
@IbrahimBenna

(in reply to damitha)
Post #: 3
RE: 421.4.4.2 connection dropped due to socketerror - 5.Apr.2011 10:54:20 AM   
damitha

 

Posts: 7
Joined: 13.Mar.2011
Status: offline
No I don't have. But some emails delivered to the same server.I have this issue for yahoo mails only.

(in reply to de.blackman)
Post #: 4
RE: 421.4.4.2 connection dropped due to socketerror - 11.Apr.2011 2:40:56 PM   
damitha

 

Posts: 7
Joined: 13.Mar.2011
Status: offline
Any solution for this?

(in reply to de.blackman)
Post #: 5
RE: 421.4.4.2 connection dropped due to socketerror - 12.Apr.2011 8:14:16 AM   
de.blackman

 

Posts: 3542
Joined: 4.Apr.2005
From: Toronto, Canada
Status: offline
What is the host name of your MX record on the internet? Does it match the FQDN your send connector is publishing?

_____________________________

Ibrahim Benna - Microsoft Exchange MVP
Forum Moderator
Navantis
@IbrahimBenna

(in reply to damitha)
Post #: 6
RE: 421.4.4.2 connection dropped due to socketerror - 21.Sep.2011 6:37:58 PM   
ptireland

 

Posts: 2
Joined: 30.May2011
Status: offline
I'm getting this right now too.  Here's the situation.

Two - Exchange 2010 SP1 Servers in a DAG
Both send connectors have the same thing mail.domain.com instead of their actual host names. 
I setup a pool on the F5 and a virtual server with all ports working.  I changed the NAT forwarding to the virtual server (exchange server pool) for failover.

Now emails are being marked as spam because the rDNS doesn't match the host name of the computer sending the mail.  The MX record points to mail.domain.com but the outgoing mail is coming from server1.domain.com or server2.domain.com

We added CNAME records on the external DNS server for server1.domain.com and server2.domain.com to point the server names to the mail.domain.com host record/server.

We're still getting outgoing mails blocked by other companies. 

HELP!!!

< Message edited by ptireland -- 21.Sep.2011 6:41:11 PM >

(in reply to de.blackman)
Post #: 7
RE: 421.4.4.2 connection dropped due to socketerror - 21.Sep.2011 7:29:34 PM   
ptireland

 

Posts: 2
Joined: 30.May2011
Status: offline
*** RESOLVED ***

We did an outbound NAT to make it appear as though mail from server1.domain.com and server2.domain.com were coming from mail.domain.com.

:D

(in reply to ptireland)
Post #: 8
RE: 421.4.4.2 connection dropped due to socketerror - 6.Oct.2011 3:33:13 AM   
DM613

 

Posts: 3
Joined: 5.Oct.2011
Status: offline
Do you acquire a about-face lookup for your MX almanac configured about? Some of these areas will not acquire mail from a area that they cannot do a about-face lookup on.

_____________________________

Buy Cheap RS Gold
Buy RS GoldBuy Maplestory Mesos

(in reply to ptireland)
Post #: 9
RE: 421.4.4.2 connection dropped due to socketerror - 8.Oct.2011 2:57:44 AM   
arunjha

 

Posts: 6
Joined: 8.Oct.2011
Status: offline
Do you acquire a about-face look up for your MX almanac configured about? Some of these areas will not acquire mail from a area that they cannot do a about-face look up on.

_____________________________

Bad Credit Unsecured Loans | New York Office Space

(in reply to mustafadogan)
Post #: 10
RE: 421.4.4.2 connection dropped due to socketerror - 18.Oct.2011 2:29:41 AM   
kathiny

 

Posts: 34
Joined: 13.Oct.2011
Status: offline
your mail server is unable to speak to the other mailserver - the othermail server is actively dropping the connection.

Is this happening for ALL exernal servers?

Are you using a smart host, or are you delivering via dns ?

_____________________________

See this article gave me great feeling, it is worth to see.
iPhone problems solved: 6 ideas to accelerate your iOS device

(in reply to arunjha)
Post #: 11
RE: 421.4.4.2 connection dropped due to socketerror - 24.Oct.2011 2:42:08 PM   
jordanl17

 

Posts: 1
Joined: 24.Oct.2011
Status: offline
ok, wow, this one was not fun.  I called MS opened a ticket.  they turned on verbose smtp logging (done in the registry).   after looking at the log file the MS mail flow expert did this:
set-sendconnector IgnoreSTARTTLS true (that's not the exact syntax, but that's what we did)

bingo,  all queues emptied out! 
our error was: 421.4.4.2 connection dropped due to socketerror.  I hope people with the same error find this thread! 

(in reply to mustafadogan)
Post #: 12

Page:   [1] << Older Topic    Newer Topic >>
All Forums >> [Microsoft Exchange 2010] >> General >> 421.4.4.2 connection dropped due to socketerror Page: [1]
Jump to:

New Messages No New Messages
Hot Topic w/ New Messages Hot Topic w/o New Messages
Locked w/ New Messages Locked w/o New Messages
 Post New Thread
 Reply to Message
 Post New Poll
 Submit Vote
 Delete My Own Post
 Delete My Own Thread
 Rate Posts


Follow TechGenix on Twitter