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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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Is there a free webmail provider that supports ipv6?
EQ Admin
Jan 13, 2011
Replies
0
Views
6K
Jan 13, 2011
EQ Admin
550 SC-001 (BAY0-MC3-F44)
EQ Admin
Dec 2, 2011
Replies
0
Views
4K
Dec 2, 2011
EQ Admin
5.7.0 SMTP; 503 5.7.0 encryption too weak 0 less than 128
EQ Admin
Sep 27, 2010
Replies
0
Views
14K
Sep 27, 2010
EQ Admin
Does it make sense to block outgoing email from Amazon SES?
EQ Admin
Nov 23, 2013
Replies
0
Views
4K
Nov 23, 2013
EQ Admin
SORBS v2.0 Spam
EQ Admin
Oct 11, 2011
Replies
0
Views
3K
Oct 11, 2011
EQ Admin
(#5.4.6) Sorry. Although I'm listed as a best-preference MX or A for that host
EQ Admin
Dec 17, 2013
Replies
0
Views
6K
Dec 17, 2013
EQ Admin
451 Invalid Smtp line - Should end with CRLF
EQ Admin
Jan 15, 2011
Replies
0
Views
7K
Jan 15, 2011
EQ Admin
Disabling SMTP option in CISCO PIX firewall
EQ Admin
Feb 5, 2014
Replies
0
Views
2K
Feb 5, 2014
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
SMTP error code # 0X800CCC6A
EQ Admin
Feb 7, 2012
Replies
0
Views
10K
Feb 7, 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
Outlook.com email addresses rejecting email with 550 SC-001 (BAY0-MC1-F26)
EQ Admin
Mar 25, 2014
Replies
0
Views
5K
Mar 25, 2014
EQ Admin
reason: 550 5.7.1 Requested action not taken: message refused (mailbox unavailable)
EQ Admin
Nov 6, 2012
Replies
0
Views
4K
Nov 6, 2012
EQ Admin
P
Problems with Displaying HTML in a BTinternet Email account
Philmanwho
Jun 30, 2011
Replies
0
Views
4K
Jun 30, 2011
Philmanwho
P
421 Too many spams from your IP
EQ Admin
Oct 12, 2011
Replies
0
Views
5K
Oct 12, 2011
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
Microsoft Hotmail Live SMTP Error Codes
EQ Admin
Oct 12, 2011
Replies
0
Views
7K
Oct 12, 2011
EQ Admin
421 PR(ct1) (BAY0-MC4-F8) - We have limits for how many messages can be sent per hour/day
EQ Admin
Oct 12, 2011
Replies
0
Views
6K
Oct 12, 2011
EQ Admin
Yahoo Deferrals
EQ Admin
Nov 6, 2008
Replies
0
Views
5K
Nov 6, 2008
EQ Admin
J
Emails queued up and then a long delay before receiving
julycoder
Dec 12, 2023
Replies
0
Views
1K
Dec 12, 2023
julycoder
J
Time Warner - Too many concurrent connections from source IP
EQ Admin
Nov 6, 2008
Replies
0
Views
8K
Nov 6, 2008
EQ Admin
Messaging Botnets
EQ Admin
Mar 11, 2013
Replies
0
Views
2K
Mar 11, 2013
EQ Admin
M
hotmail credentials
maga25
Apr 9, 2010
Replies
0
Views
3K
Apr 9, 2010
maga25
M
How to activate mail service for pop3 accounts in a new domain within Plesk
EQ Admin
Feb 7, 2012
Replies
0
Views
3K
Feb 7, 2012
EQ Admin
InformationWave RBL Down (Decommissioned?)
EQ Admin
Jan 5, 2009
Replies
0
Views
4K
Jan 5, 2009
EQ Admin
How do I trace a missing email?
EQ Admin
Dec 29, 2009
Replies
0
Views
5K
Dec 29, 2009
EQ Admin
Remote host said: 554 5.2.1 : (DYN:T1)
EQ Admin
Mar 27, 2012
Replies
0
Views
4K
Mar 27, 2012
EQ Admin
SPF Record when domain does not send email
EQ Admin
Oct 27, 2013
Replies
0
Views
2K
Oct 27, 2013
EQ Admin
How to do spamhaus RBL blacklist check
EQ Admin
Oct 15, 2011
Replies
0
Views
3K
Oct 15, 2011
EQ Admin
Messages older than 48 hours will not be delivered and will be deleted from the Barracuda
EQ Admin
Aug 29, 2011
Replies
0
Views
4K
Aug 29, 2011
EQ Admin
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