Hello Erik 
I got this Problem when i try to open SquirrelMail …ERROR: Connection dropped by IMAP server. i installed this script throw virtualmin
when i try RoundCube i got anthoer error Fehler: Verbindung zum Speicherserver fehlgeschlagen
in english its ERROR: Failed to connect to server memory or so
i have tried to slove this issue but i coudint
i want also from u plaese a tutorial to help me setup the postfix and SPF and greylisting etc …
thank u
Howdy,
Whenever that occurs, try looking in the mail logs – /var/log/maillog or /var/log/mail.log – do you see any errors in there?
Also, do you notice any errors in the Apache error log for your domain, located in $HOME/logs/error_log?
-Eric
no Erik i cant see any erro for this Problem in /var/log/maillog or in /…//logs/error_log
what should i do now ?
i think Erik i have problem with reciving Emails
i used now the usermin to send email to hotmail its work but i want to send it back to myemail i didnt recive any email
and i didnt also get an email for example Undelivered Mail Returned to Sender ?
Howdy,
If you look in your email logs, do you see any errors when trying to send an email to your server?
Do you at least see a connection attempt by the sending server?
-Eric
yesterday i wanted to send email to my server to test
today i see this messege from hotmail
This is an automatically generated Delivery Status Notification.
THIS IS A WARNING MESSAGE ONLY.
YOU DO NOT NEED TO RESEND YOUR MESSAGE.
Delivery to the following recipients has been delayed.
myemail &**
Howdy,
Unfortunately, that delivery status notification doesn’t explain why it was delayed… you’ll need to try what I mentioned in my comment above – try sending yourself an email, then review the mail logs.
-Eric
i sent to myself an email and this is the mail logs
Mar 24 18:22:08 server postfix/pickup[24703]: 5305811A0771: uid=0 from=
Mar 24 18:22:08 server postfix/cleanup[24747]: 5305811A0771: message-id=20150324172208.5305811A0771@server.mydomain.com
Mar 24 18:22:08 server postfix/qmgr[24704]: 5305811A0771: from=root@mydomain.com, size=463, nrcpt=1 (queue active)
Mar 24 18:22:08 server postfix/local[24878]: 5305811A0771: to=root@server.mydomain.com, relay=local, delay=0.03, delays=0.02/0/0/0.01, dsn=2.0.0, status=sent (delivered to command: /usr/bin/procmail)
Mar 24 18:22:08 server postfix/qmgr[24704]: 5305811A0771: removed
Aha, that looks good… it appears that you sent an email to “root@server.mydomain.com”?
The email logs show that message being delivered – we can tell that by this part in the logs:
delivered to command: /usr/bin/procmail
If you didn’t receive that message, then the next step is to look in /var/log/procmail.log to see where the email went.
-Eric
i see that an error in this file "/etc/webmin/virtual-server/lookup-domain.pl
this is the file:
#!/usr/bin/perl
delete($ENV{‘IFS’});
delete($ENV{‘CDPATH’});
delete($ENV{‘ENV’});
delete($ENV{‘BASH_ENV’});
$ENV{‘PATH’} = ‘/bin:/usr/bin’;
$< = $>;
$( = $);
open(CONF, “/etc/webmin/miniserv.conf”) || die “Failed to open /etc/webmin/miniserv.conf : $!”;
while() {
$root = $1 if (/^root=(.*)/);
}
close(CONF);
$root || die “No root= line found in /etc/webmin/miniserv.conf”;
$ENV{‘PERLLIB’} = “$root”;
$ENV{‘WEBMIN_CONFIG’} = “/etc/webmin”;
$ENV{‘WEBMIN_VAR’} = “/var/webmin”;
chdir("$root/virtual-server");
exec("$root/virtual-server/lookup-domain.pl", @ARGV) || die “Failed to run $root/virtual-server/lookup-domain.pl : $!”;
yes i sent an email to root@server.mydomain.com and this is /var/log/procmail.log
Mar 24 18:22:08 server postfix/cleanup[24747]: 5305811A0771: message-id=20150324172208.5305811A0771@server.mydomain.com
Mar 24 18:22:08 server postfix/qmgr[24704]: 5305811A0771: from=root@mydomain.com, size=463, nrcpt=1 (queue active)
Mar 24 18:22:08 server postfix/local[24878]: 5305811A0771: to=root@server.mydomain.com, relay=local, delay=0.03, delays=0.02/0/0/0.01, dsn=2.0.0, status=sent (delivered to command: /usr/bin/procmail)
Mar 24 18:22:08 server postfix/qmgr[24704]: 5305811A0771: removed
[root@server mydomain.com]# cat /var/log/procmail.log
Insecure dependency in exec while running with -T switch at /etc/webmin/virtual-server/lookup-domain.pl line 19.
procmail: Program failure (255) of “/etc/webmin/virtual-server/lookup-domain.pl”
procmail: Skipped “/dev/null”
procmail: Unable to treat as directory “//Maildir”
procmail: Error while writing to “//Maildir”
procmail: Unable to treat as directory “//Maildir”
procmail: Lock failure on “//Maildir.lock”
procmail: Error while writing to “//Maildir”
From root@mydomain.comTue Mar 24 18:21:54 2015
Subject: ahmed
Folder: Bounced 628
Time:1427217714 From:root@mydomain.com To:root@server.mydomain.com User:nobody Size:631 Dest://Maildir/ Mode:None
Insecure dependency in exec while running with -T switch at /etc/webmin/virtual-server/lookup-domain.pl line 19.
procmail: Program failure (255) of “/etc/webmin/virtual-server/lookup-domain.pl”
procmail: Skipped “/dev/null”
procmail: Unable to treat as directory “//Maildir”
procmail: Error while writing to “//Maildir”
procmail: Unable to treat as directory “//Maildir”
procmail: Lock failure on “//Maildir.lock”
procmail: Error while writing to “//Maildir”
From root@mydomain.com Tue Mar 24 18:22:08 2015
Subject: ahmed123123
Folder: Bounced 622
Time:1427217728 From:root@mydomain.com To:root@server.mydomain.com User:nobody Size:628 Dest://Maildir/ Mode:None
Any Idea Erik ¿
i reinstalled the dovecot and the problem ERROR: Connection dropped by IMAP server. was solved
but i still cant reciving anyemails ! 
please can anybody help me
telnet localhost 25 Connection refused …
Howdy,
You seem to be seeing some unusual errors, I’m not sure what would cause these two:
procmail: Unable to treat as directory "//Maildir"
procmail: Error while writing to "//Maildir"
It could potentially be a permissions issue, though usually when that’s the case it explicitly states that.
Regarding your current Dovecot issue though – if you’re receiving a connection refused error, make sure that Dovecot is actually running. If it is, you’d want to check the email logs to see what errors are occurring.
-Eric
i dont get this unusual errors anymor after reinstalling Dovecot and it is actually running but when i restart it
I got this
Mar 28 10:49:06 server postfix/qmgr[6562]: B9AC411A09C9: removed
Mar 28 11:15:30 server dovecot: master: Warning: Killed with signal 15 (by pid=7935 uid=0 code=kill)
Mar 28 11:15:32 server dovecot: master: Dovecot v2.0.9 starting up (core dumps disabled)
is this Warinin normal ?
and now i got an new error
Mar 28 04:49:40 server postfix/smtpd[21554]: warning: SASL: Connect to private/auth failed: Connection refused
Mar 28 04:49:40 server postfix/smtpd[21554]: fatal: no SASL authentication mechanisms
Mar 28 04:49:41 server postfix/master[6559]: warning: process /usr/libexec/postfix/smtpd pid 21554 exit status 1
Mar 28 10:37:06 server postfix/smtp[6015]: certificate verification failed for mta6.am0.yahoodns.net[98.136.216.25]:25: untrusted issuer /C=US/O=VeriSign, Inc./OU=Class 3 Public Primary Certification Authority
Mar 28 10:49:04 server postfix/smtp[6537]: certificate verification failed for mx1.hotmail.com[65.54.188.126]:25: untrusted issuer /C=IE/O=Baltimore/OU=CyberTrust/CN=Baltimore CyberTrust Root
now i can send email to me from my server i recived the email and i can read it and i got this error again in
Folder: /home/mydomain.com/Maildir/new/1427566353.31480_0.server 799
Time:1427566353 From:postmaster@mydomain.com To:ahmed@mydomain.com User:mydomain.com Size:859 Dest:/home/mydomain.com/Maildir/new/1427566353.31480_0.server.mydomain.com Mode:None
Insecure dependency in exec while running with -T switch at /etc/webmin/virtual-server/lookup-domain.pl line 19.
procmail: Program failure (255) of "/etc/webmin/virtual-server/lookup-domain.pl"
procmail: Skipped "/dev/null"
procmail: Unable to treat as directory "//Maildir"
procmail: Error while writing to "//Maildir"
procmail: Unable to treat as directory "//Maildir"
procmail: Lock failure on "//Maildir.lock"
procmail: Error while writing to "//Maildir"
From root@mydomain.com Sat Mar 28 19:16:02 2015
Subject: Cron /etc/webmin/virtualmin-awstats/awstats.pl mydomain
Folder: **Bounced** 765
Time:1427566562 From:root@mydomain.com To:root@mydomain.com User:nobody Size:912 Dest://Maildir/ Mode:None
Howdy,
Hmm, it looks like it’s working in some cases, but not others.
The logs above show the email to the user “ahmed@mydomain.com” was delivered to that user’s inbox.
There was another email sent later from root@mydomain.com to the user “nobody” that is causing all those unusual messages.
However, the email to ahmed@mydomain.com should be there, and should be visible.
What happens when trying to view that message? Are you still receiving a connection error of some sort when trying to open it?
-Eric
the email to ahmed@mydomain.com is there and i can see it also throw roundcube and SquirrelMail without any problem more
but when i send an email from roundcube to hotmail for example i got this error
SMTP Error (-1):
and when i send an email from hotmail to ahmed@mydomain.com i cant get this and see it …
so where is the problem now
For each of those issues, you need to use the mail logs to identify what’s going on.
Try sending yourself an email from Hotmail – and immediately after doing that, look in the mail logs to see what shows up. There should be a connection attempt from Hotmail.
And when trying to send an email from Roundcube – look in the mail logs, and see what errors are thrown.
-Eric
Hey Erik thanks for Helping i solved all my problems
i can now send an recive emails wihout problems
the solution was adding ssl port in master.cf file
nano /etc/postfix/master.cf
and add this line
465 inet n - n - - smtpd
but the problem now is in the virtualmin
i want to install DomainKeys Identified Mail form my panel
i got this error
Installiere Paket(e) mit Befehl yum -y install dkim-milter …
Loaded plugins: fastestmirror, security
Setting up Install Process
Loading mirror speeds from cached hostfile
what can i do for this ? cuz i cant send emails to gmail i want to install this to solve the last problem
thanks