Unknown response 435 Unable to authenticate at present

[sarwhost]

Hello
We install new server and dirctadmin on the centos6
it good but not send mail an not get mail
I update exim
and check port 25 it open
update custombuild 2
but not solved
please help me

Log

2015-12-20 22:44:47 exim 4.84 daemon started: pid=25791, -q15m, listening for S$
2015-12-20 22:44:50 exim 4.84 daemon started: pid=25836, -q15m, listening for S$
2015-12-21 01:58:26 1aAony-0002Py-HC <= [email protected] U=diradmin P=loc$
2015-12-21 01:58:26 1aAony-0002Py-HC ** [email protected] F=<[email protected].$
2015-12-21 01:58:26 1aAony-0002Q5-IE <= <> R=1aAony-0002Py-HC U=mail P=local S=$
2015-12-21 01:58:26 1aAony-0002Q1-I4 <= [email protected] U=diradmin P=loc$
2015-12-21 01:58:26 1aAony-0002Q5-IE => :blackhole: <[email protected]> R=$
2015-12-21 01:58:26 1aAony-0002Q5-IE Completed
2015-12-21 01:58:26 1aAony-0002Py-HC Completed
2015-12-21 01:58:26 1aAony-0002Q1-I4 => admin <[email protected]> F=<diradmin$
2015-12-21 01:58:26 1aAony-0002Q1-I4 Completed
2015-12-21 03:53:01 1aAqar-0005Nq-EK <= [email protected] U=diradmin P=loc$
2015-12-21 03:53:01 1aAqar-0005Nq-EK => admin <[email protected]> F=<diradmin$
2015-12-21 03:53:01 1aAqar-0005Nq-EK Completed
2015-12-21 04:46:01 1aArQ9-0005Re-KL <= [email protected] U=diradmin P=loc$
2015-12-21 04:46:01 1aArQ9-0005Re-KL ** [email protected] F=<[email protected].$
2015-12-21 04:46:01 1aArQ9-0005Rj-LS <= <> R=1aArQ9-0005Re-KL U=mail P=local S=$
2015-12-21 04:46:01 1aArQ9-0005Rj-LS => :blackhole: <[email protected]> R=$
2015-12-21 04:46:01 1aArQ9-0005Rj-LS Completed

 

[sarwhost]

Please help me

 

[Richard G]

Check these things.
In /etc/virtual you should have a directory with your hostname like

drwxr-xr-x   2 mail      mail   4.0K 2015-11-24 00:04 s.mydomain.com

If you don't have it, you can create it yourself, it should be an empty directory.

Next to that you can add your hostname to DNS in your DNS records. You can do that via the dns manager of the domain.
Use one of these lines:

s	A	46.xx.xx.xx

where 46.xx.xx.xx should be replace by your server's ip address, or

s.mydomain.com. 	A	46.xx.xx.xx

Mind the dot behind the domainname.

Mine is called for example server12.mydomain.com and my dns record shows:

server12    	A	46.xx.xx.xx

These things might help with your issue.