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Mail Server Support
Technical discussions with systems administrators about email servers, software, and appliances.
Microsoft Exchange
Support for Microsoft Exchange mail servers
Threads
41
Messages
104
Threads
41
Messages
104
Tens maybe Hundreds of Thousands of Exchange Servers Hacked
Apr 2, 2021
EQ Admin
IMAP Tools
IMAP migration scripts and technical support
Threads
35
Messages
153
Threads
35
Messages
153
A
SMTP Outgoing mail not sending
May 28, 2018
arytxer
Sendmail
Support for sendmail mail servers
Threads
17
Messages
30
Threads
17
Messages
30
Asp.net c# - Sending email with french characters in ToAddress
Jan 21, 2016
EQ Admin
Postfix
Support for postfix mail servers
Threads
25
Messages
74
Threads
25
Messages
74
Postfix - Virtual Alias Table Automated Population
Feb 24, 2022
postmanpat666
qmail
Support for qmail mail servers
Threads
102
Messages
271
Threads
102
Messages
271
O
Qmail does not forward emails with "=" in sender email address
May 6, 2019
Ove Halseth
Zimbra
Support for Zimbra mail servers
Threads
16
Messages
19
Threads
16
Messages
19
zimbra-core is missing
Jan 20, 2019
Latest Questions
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421 too many connections
EQ Admin
Mar 2, 2012
Replies
0
Views
5K
Mar 2, 2012
EQ Admin
What are the Message Labs IP Address ranges?
EQ Admin
Nov 14, 2013
Replies
0
Views
6K
Nov 14, 2013
EQ Admin
duplicate emails
EQ Admin
Jan 20, 2014
Replies
0
Views
2K
Jan 20, 2014
EQ Admin
How to capture passwords from Horde IMP webmail logins
EQ Admin
Apr 25, 2014
Replies
0
Views
3K
Apr 25, 2014
EQ Admin
Plesk Bare LF - How to install fixcrio
EQ Admin
Jul 4, 2012
Replies
0
Views
5K
Jul 4, 2012
EQ Admin
521 blocked by blacklist.mailrelay.att.net 521 DNSRBL Blocked for abuse
EQ Admin
Sep 12, 2013
Replies
0
Views
5K
Sep 12, 2013
EQ Admin
INetMsg.SpamDomain-2w unofficial found false positive
EQ Admin
May 8, 2012
Replies
0
Views
3K
May 8, 2012
EQ Admin
M
Mail Server Connectivity problem
mkerld
Aug 24, 2014
Replies
0
Views
2K
Aug 24, 2014
mkerld
M
452 4.3.1 Insufficient system resources
EQ Admin
Mar 6, 2012
Replies
0
Views
5K
Mar 6, 2012
EQ Admin
#5.3.4 SMTP; 552 Message size exceeds maximum permitted
EQ Admin
Mar 6, 2012
Replies
0
Views
18K
Mar 6, 2012
EQ Admin
DKIM vs. DomainKeys
EQ Admin
May 9, 2012
Replies
0
Views
3K
May 9, 2012
EQ Admin
Plesk 10.x mail logs
EQ Admin
Jul 6, 2012
Replies
0
Views
3K
Jul 6, 2012
EQ Admin
Remote host said: 250 2.0.0 OK
EQ Admin
Mar 6, 2012
Replies
0
Views
8K
Mar 6, 2012
EQ Admin
554 5.7.1 Service unavailable Sender address blocked using local dbl rbl
EQ Admin
Mar 6, 2012
Replies
0
Views
29K
Mar 6, 2012
EQ Admin
553 5.3.0 flph384 DNSBL:RBL 521
Latest Questions
Dec 28, 2015
Replies
0
Views
3K
Dec 28, 2015
Latest Questions
Sending Failed Reason 451
EQ Admin
Apr 27, 2014
Replies
0
Views
4K
Apr 27, 2014
EQ Admin
MX Record Question
EQ Admin
Dec 3, 2009
Replies
0
Views
3K
Dec 3, 2009
EQ Admin
DEAD RBL's
EQ Admin
Mar 18, 2010
Replies
0
Views
3K
Mar 18, 2010
EQ Admin
Remote host said: 550 5.1.1 recipient rejected 98.139.213.140 is in RBL [RCPT_TO]
EQ Admin
Nov 15, 2013
Replies
0
Views
10K
Nov 15, 2013
EQ Admin
BACKSCATTERER
EQ Admin
Sep 29, 2011
Replies
0
Views
2K
Sep 29, 2011
EQ Admin
How to configure Horde / IMP to display inline HTML by default
EQ Admin
Nov 15, 2013
Replies
0
Views
5K
Nov 15, 2013
EQ Admin
DNS MX Records and Reverse DNS for Mail Servers
EQ Admin
Feb 12, 2009
Replies
0
Views
28K
Feb 12, 2009
EQ Admin
D
NXDOMAIN / public resolvers and zen.spamhaus.org
dns operations
Mar 27, 2011
Replies
0
Views
5K
Mar 27, 2011
dns operations
D
LASHBACK
EQ Admin
Sep 29, 2011
Replies
0
Views
2K
Sep 29, 2011
EQ Admin
SORBS-SPAM
EQ Admin
Sep 29, 2011
Replies
0
Views
4K
Sep 29, 2011
EQ Admin
DNS RHS Blacklist
EQ Admin
Nov 24, 2008
Replies
0
Views
5K
Nov 24, 2008
EQ Admin
Why is my email going to the old server IP address?
EQ Admin
Feb 12, 2009
Replies
0
Views
5K
Feb 12, 2009
EQ Admin
The Minger Email Address Verification Protocol
EQ Admin
Mar 19, 2010
Replies
0
Views
5K
Mar 19, 2010
EQ Admin
Remote host said: 550 #5.1.0 Address rejected
EQ Admin
Dec 23, 2008
Replies
0
Views
81K
Dec 23, 2008
EQ Admin
421 4.7.0 Our system has detected an unusual rate of unsolicited mail originating from your IP
EQ Admin
Apr 28, 2014
Replies
0
Views
8K
Apr 28, 2014
EQ Admin
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