Re: Mail Server Compromised?

2010-12-26 Thread Martin Kellermann
Am 25.12.2010 19:55, schrieb ASAI: Greetings, In the logs I have been seeing many attempts made to send messages to gmail which seem like there's spam being sent from my server. In the logs I see this: Dec 24 00:05:11 triata amavis[29729]: (29729-06) Passed CLEAN, -> , Message-ID: <2010

Re: postfix as incoming relay to protect exchange server / recipient lookup

2010-12-06 Thread Martin Kellermann
Am 05.12.2010 20:40, schrieb DTNX/NGMX Postmaster: On 02/12/2010, at 23:08, Stan Hoeppner wrote: Martin Kellermann put forth on 12/2/2010 6:08 AM: and there's a 5 sec. delay ... seems way too long to me for just checking the recipient...!? That delay should be no longer than what a ty

Re: postfix as incoming relay to protect exchange server / recipient lookup

2010-12-06 Thread Martin Kellermann
Am 02.12.2010 23:08, schrieb Stan Hoeppner: Martin Kellermann put forth on 12/2/2010 6:08 AM: and there's a 5 sec. delay ... seems way too long to me for just checking the recipient...!? That delay should be no longer than what a typical delivery to the Exchange server would be. Sin

Re: postfix as incoming relay to protect exchange server / recipient lookup

2010-12-02 Thread Martin Kellermann
Am 02.12.2010 13:11, schrieb Eero Volotinen: but i see a strange "double-bounce" in mail.log which i don't understand: double-bounce is account used for validation of user account. thank you for explaining this... so everything seems to be fine so far... is this user name configurable?

Re: postfix as incoming relay to protect exchange server / recipient lookup

2010-12-02 Thread Martin Kellermann
On 02/12/2010, at 06:25, DTNX/NGMX Postmaster wrote: On 01/12/2010, at 23:18, Stan Hoeppner wrote: Martin Kellermann put forth on 12/1/2010 9:19 AM: so, is it still (seven years later) "The right thing™ to do" ? will it work proper with exchange 2007/2010 ? since the usage

postfix as incoming relay to protect exchange server / recipient lookup

2010-12-01 Thread Martin Kellermann
hi, we need to set up postfix as an incoming relay which forwards messages via transport to a protected exchange 2007 server. to do this without getting backscatter, we need to check the recipients for validity on exchange server side in AD/LDAP. this howto from 2003 describes pretty well, what