06-21-2012 05:14 AM
ive started a thread at technet (http://social.technet.microsoft.com/Forums/en-US/e
im having issues outlook sending mails trough smtp outside our lan... which means when when the pc is in the server lan smtp works just fine with port 25 and even with port 587 using authentification and tls. but when getting home and trying to send an email i will get 550 5.7.1 so... im wondering is it exchange or firewall?
Probably Exchange. I guess that the text is something like relaying not allowed??
Do you authenticate when trying to send from home (this is a must - else your server would be used as an open relay by spammers)
when testing internal everthing works...
and then external
message did not reach some or all of the intended recipients. Subject: Test Email Adress Sent: 17.06.2012 10:21 The following recipient(s) cannot be reached: 'vartaxe' on 17.06.2012 10:21 550 5.7.1 Your email messages have been blocked by the recipient OR by Trend Micro Email Reputation Service. Contact the recipient or his/her administrator using alternate means to resolve the issue.
btw just for information everything else work fine... imap, pop, owa, outlook anywhere, activesync,... it just smtp from external who doesn't.
ps: i now remember i have another problem with our big MFP (konica minolta bizhub) wich can't send pdf to external email domains... it may be related to the same thing but in this case the MFP is internal.
i also can't imagine it having anything todo with trendmicro but... (my ip adress isn't listed @ https://ers.trendmicro.com/ )
i found a post where someone posted the following:
Get-ReceiveConnector"YourClientConnector"| add-adpermission -user AU -extendedrights ms-Exch-SMTP-Accept-Authoritative-Domain-Sender
should i try that?
the ip adress isn't blacklisted...
also performed all tests from testexchangeconnectivity.com and everything passed/is ok (green)
in the otherside using the tools from mxtoolbox.com i get the following: (thanks for the link i didn't know that site)
|OK - xxx.xxx.xxx.xx resolves to ip-xxx-xxx-xxx-xx.static.luxdsl.pt.lu|
|Warning - Reverse DNS does not match SMTP Banner|
|Warning - Does not support TLS.|
|0 seconds - Good on Connection time|
|OK - Not an open relay.|
|5.897 seconds - Warning on Transaction Time|
250-mailserver.domain.local Hello [18.104.22.168]
250 XXXXXXXA [156 ms]
MAIL FROM: <email@example.com>
250 2.1.0 Sender OK [140 ms]
RCPT TO: <firstname.lastname@example.org>
550 5.7.1 Unable to relay [5148 ms]
|21||ftp||Thread was being aborted.||0|
|22||ssh||Thread was being aborted.||0|
|23||telnet||Thread was being aborted.||0|
|53||dns||Thread was being aborted.||0|
|139||netbios||Thread was being aborted.||0|
|389||ldap||Thread was being aborted.||0|
|1352||lotus notes||Thread was being aborted.||0|
|1433||sql server||Thread was being aborted.||0|
|3306||my sql||Thread was being aborted.||0|
|3389||remote desktop||Thread was being aborted.||0|
|8080||webcache||Thread was being aborted.||0|
one thing is sure... the cisco asa isn't blocking the ports.
btw im not using spf record never used that before. should i give it a try after fixing this problem? http://www.microsoft.com/mscorp/safety/content/tec
Accroding to your error information, Do you have the Trend Micro Email Reputation Service.
If you can, can you try to disable the service and test again. May be the service has added your Ip address into a blacklist. So you can't send message at home, because you are using a different address.
afaik we don't run any trend micro email reputation service... our servers and desktops are running
|Trend Micro Worry-Free Business Security Advanced|
7.0 Service Pack 1 build 2360
but no email reputation service....
so here we go... any idea about whats going on?
Solved! Go to Solution.
07-13-2012 04:12 PM - edited 07-13-2012 04:12 PM
"where is trendmicro support team!?"
On the Trend Micro support site, not here in the end-user community.
07-16-2012 04:40 AM - edited 07-16-2012 04:42 AM