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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
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Yahoo Mail Server IP Addresses
EQ Admin
Dec 18, 2008
Replies
0
Views
82K
Dec 18, 2008
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
554 5.1.0 Sender denied
EQ Admin
Feb 8, 2012
Replies
0
Views
44K
Feb 8, 2012
EQ Admin
554 5.7.1 This message has been blocked because it is from a FortiGuard - AntiSpam black IP address
EQ Admin
Mar 12, 2012
Replies
0
Views
36K
Mar 12, 2012
EQ Admin
AT&T & Yahoo - Your customers are not receiving their email - 5.3.0 flph384 DNSBL RBL 521
EQ Admin
Jun 4, 2014
Replies
13
Views
36K
Apr 29, 2016
Mike Stroven
M
Barracuda Default Username and Password
EQ Admin
Nov 12, 2008
Replies
0
Views
32K
Nov 12, 2008
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
DNS MX Records and Reverse DNS for Mail Servers
EQ Admin
Feb 12, 2009
Replies
0
Views
28K
Feb 12, 2009
EQ Admin
T
Bounce-back email: SMTP not sending or Email Host not Receiving?
tony17112acst
Jan 27, 2017
Replies
0
Views
28K
Jan 27, 2017
tony17112acst
T
Amazon EC2 SMTP Sending Email Limits
EQ Admin
Jul 12, 2010
Replies
1
Views
27K
Jul 12, 2010
EQ Admin
B
Problems sending from my email account (GoDaddy hosted) to hotmail/outlook.com
Benjamin Sharp
Mar 1, 2016
2
Replies
20
Views
26K
Jan 14, 2023
Azharpk
A
S
553 sorry, that domain isn't in my list of allowed rcpthosts; no valid cert for gatewaying (#5.7.1)
snowflake
May 28, 2014
Replies
3
Views
23K
Oct 20, 2014
EQ Admin
BODY: Message only has text/html MIME parts
EQ Admin
Nov 16, 2010
Replies
0
Views
23K
Nov 16, 2010
EQ Admin
Barracuda Spam Firewall - 421 Error: too many messages in one session
EQ Admin
Feb 21, 2012
Replies
0
Views
22K
Feb 21, 2012
EQ Admin
Why is my DKIM signature invalid? (The p= field must be base64 encoded)
EQ Admin
May 8, 2015
Replies
3
Views
21K
Nov 30, 2017
EQ Admin
How to create an SPF record with the SPF Wizard
EQ Admin
May 9, 2015
Replies
17
Views
21K
May 21, 2015
EQ Admin
V
Received-SPF: permerror (encountered permanent error during SPF processing of domain )
vahidbakhtiary
Oct 27, 2013
Replies
8
Views
20K
Oct 30, 2013
EQ Admin
Possible to import emails from godaddy account
fearmydesign
Sep 28, 2010
Replies
4
Views
20K
Sep 28, 2010
EQ Admin
Yahoo - 421 4.7.1 [TS03] All messages permanently deferred
EQ Admin
Jul 21, 2009
Replies
8
Views
19K
Aug 9, 2010
jparker
J
#5.3.4 SMTP; 552 Message size exceeds maximum permitted
EQ Admin
Mar 6, 2012
Replies
0
Views
18K
Mar 6, 2012
EQ Admin
SMTP 550 Blocked - Why is my email blocked with an error message?
EQ Admin
Feb 6, 2014
Replies
0
Views
18K
Feb 6, 2014
EQ Admin
Remote host said: 554 5.7.1 DNS Blacklisted
EQ Admin
Feb 10, 2012
Replies
0
Views
17K
Feb 10, 2012
EQ Admin
Restore Factory Defaults
EQ Admin
Nov 12, 2008
Replies
0
Views
17K
Nov 12, 2008
EQ Admin
ERROR Failed to connect to mail.example.com:25 [SMTP: Failed to connect socket: Connection timed out
EQ Admin
Feb 7, 2012
Replies
0
Views
16K
Feb 7, 2012
EQ Admin
550 5.7.1 Service unavailable - blocked using Trend Micro RBL+
EQ Admin
Dec 14, 2012
Replies
0
Views
16K
Dec 14, 2012
EQ Admin
554 Sending address not accepted due to spam filter
EQ Admin
Oct 24, 2013
Replies
0
Views
16K
Oct 24, 2013
EQ Admin
How to contact Godaddy Abuse - 552 5.2.0 http://x.co/crbounce
EQ Admin
Jun 12, 2014
Replies
4
Views
16K
Dec 9, 2014
EQ Admin
550 -verification failed
fearmydesign
Nov 3, 2010
Replies
12
Views
15K
Dec 1, 2010
fearmydesign
WHM/cPanel: Default to blackhole
Big Dan
Nov 19, 2008
Replies
2
Views
15K
Nov 19, 2008
Big Dan
How to create a custom Reverse DNS PTR record for an Amazon AWS EC2 server
EQ Admin
Feb 26, 2011
Replies
0
Views
15K
Feb 26, 2011
EQ Admin
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