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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 smtp out of connection slots
EQ Admin
Oct 15, 2011
Replies
0
Views
7K
Oct 15, 2011
EQ Admin
How do I spool my incoming email at Postini while my server is down for maintenance or upgrades?
EQ Admin
Oct 24, 2010
Replies
0
Views
7K
Oct 24, 2010
EQ Admin
208.65.145.2 Remote host said: 554 Denied mxlogic.net (Mode: normal)
EQ Admin
May 20, 2014
Replies
2
Views
7K
Jun 10, 2015
EQ Admin
451 Invalid Smtp line - Should end with CRLF
EQ Admin
Jan 15, 2011
Replies
0
Views
7K
Jan 15, 2011
EQ Admin
DrWeb-DAEMON Postmaster A VIRUS HAS BEEN DETECTED
EQ Admin
May 7, 2015
Replies
0
Views
7K
May 7, 2015
EQ Admin
IMail Getting Started Guide
KevinF
May 6, 2010
Replies
0
Views
7K
May 6, 2010
KevinF
What should I do when my email is blocked by AOL, Comcast, EarthLink, Yahoo?
EQ Admin
Oct 30, 2013
Replies
0
Views
7K
Oct 30, 2013
EQ Admin
G
Hosted SMTP Server HELO setting
Geovani Enzo
Jun 3, 2015
Replies
6
Views
7K
Jun 9, 2015
EQ Admin
Microsoft Hotmail Live SMTP Error Codes
EQ Admin
Oct 12, 2011
Replies
0
Views
7K
Oct 12, 2011
EQ Admin
N
What port needs to be open for incoming mail?
Nick Glenn
Aug 24, 2010
Replies
1
Views
7K
Aug 24, 2010
EQ Admin
Amazon Simple Email Service (SES) Registration
EQ Admin
Feb 18, 2011
Replies
5
Views
8K
Mar 10, 2012
EQ Admin
Axigen Mail Server
jshollis
Jan 6, 2011
Replies
2
Views
8K
Jan 6, 2011
jshollis
D
A cheap/free MTA for Windows with all bells and whistles
dshaynie2
Feb 23, 2011
Replies
1
Views
8K
Feb 26, 2011
EQ Admin
G
MAILER-DAEMON@yahoocom,Failure,Notice
grzrad
Nov 1, 2011
Replies
1
Views
8K
Nov 1, 2011
EQ Admin
cPanel/WHM: Fix for 550 Access denied - Invalid HELO name
Big Dan
Feb 14, 2014
Replies
0
Views
8K
Feb 14, 2014
Big Dan
How to build and include the uw-imap c-client in php
EQ Admin
Mar 3, 2009
Replies
0
Views
8K
Mar 3, 2009
EQ Admin
SSL Certificate Error 80048888 (pop,imap,smtp) mail server settings
EQ Admin
Dec 6, 2013
Replies
0
Views
8K
Dec 6, 2013
EQ Admin
SSL vs TLS vs STARTTLS for SMTP Mail Servers
EQ Admin
Sep 10, 2013
Replies
1
Views
8K
Sep 12, 2013
EQ Admin
Remote host said: 250 2.0.0 OK
EQ Admin
Mar 6, 2012
Replies
0
Views
8K
Mar 6, 2012
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
SORBS-DUHL LISTED Detail Return codes were: 127.0.0.10 blacklist
EQ Admin
Oct 6, 2011
Replies
6
Views
8K
Oct 23, 2011
EQ Admin
Time Warner - Too many concurrent connections from source IP
EQ Admin
Nov 6, 2008
Replies
0
Views
8K
Nov 6, 2008
EQ Admin
GoDaddy server email issues
fearmydesign
Sep 23, 2010
Replies
4
Views
9K
Sep 28, 2010
EQ Admin
What do the numbers in SMTP error codes mean?
EQ Admin
Oct 24, 2010
Replies
0
Views
9K
Oct 24, 2010
EQ Admin
rejected commands from x.x.x.x due to pre-greeting traffic
EQ Admin
Sep 26, 2013
Replies
0
Views
9K
Sep 26, 2013
EQ Admin
Emails never being received no bounce
xxkinetikxx
Jul 23, 2010
Replies
5
Views
9K
Aug 3, 2010
EQ Admin
How to fix 421 4.7.1 DYN:T1 postmaster AOL error message
EQ Admin
May 25, 2013
Replies
0
Views
9K
May 25, 2013
EQ Admin
What are the Postini outgoing mail server IP address ranges?
EQ Admin
Nov 5, 2010
Replies
0
Views
9K
Nov 5, 2010
EQ Admin
What affects email deliverability more, DKIM signing or sender score?
EQ Admin
May 8, 2015
Replies
6
Views
9K
Dec 3, 2015
EQ Admin
554 Your access to this mail system has been rejected due to the sending MTA's poor reputation
Latest Questions
Oct 23, 2015
Replies
1
Views
10K
Oct 23, 2015
EQ Admin
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