Hi
I have a Windows Server 2008 R2 VPS that I have just installed the SMTP service on. I can send emails through telnet to smtp (telnet localhost 25) but from my asp.net application, emails reach the outgoing queue and just sit there.
Can anyone point me in the right direction as to what might cause this behaviour?
Thanks
Related
I am a newbie in zimbra and I like to install two zimbra mail server with same domain. So one server shuts off or became unreachable my other server will back me up (Zimbra cluster). So is it possible to do such things with zimbra mail server? and can I do it Zimbra open source edition?
I have a web server running CentOS and a separate mail server running Microsoft Exchange. I have the web server connecting to the mail server via SMTP on port 587 to send emails.
Sometimes the connection to the mail server refuses, but it's rare. Could an intermittent failure be related to port settings? I would have thought it's all or nothing.
For the CentOS web server, what rules should I be looking to configure in the iptables if any? Do I need to add an entry for port 587 on this server? Or do I just need to allow incoming connections on the mail server for 587?
Thanks in advance.
You don't need to set up any iptables rules on your webserver, since outgoing connections are allowed by default. Your occasional drops won't have anything to do with the webserver's firewall, so you'll want to look at tuning your Exchange server, if the error is impactful enough to worry about it.
I have just had to re-image my server and for some reason, when I do a test connection in outlook, it errors on both send/receive with could not connect to server.
I have checked that both postfix and courier-imap are running on the server and have restarted both just to make sure. I am using plesk 12 and have setup users for the email system, so would appreciate some guidance as to how I can troubleshoot this. Many thanks
SOLVED
Reset iptables all good now
I used IIS5.1 prior with the Virtual SMTP Server to send some internal mail. However, we've been upgraded to IIS7.5 and there is no SMTP Server for some reason Microsoft doesn't have a fit explanation for. Is there a comparable local SMTP Server that I could use (I only need send-only, not a full mail server, if that makes a difference)?
In short, you can still use IIS6 SMTP server on IIS7.5, or you can use a free smtp server alternative as listed below.
IIS6 SMTP:
Is the SMTP virtual server deprecated in IIS 7?
http://www.chrislazari.com/2011/04/iis-75-installing-smtp-service-securing.html
http://forums.iis.net/p/1157046/1901343.aspx
Popular alternatives:
MailEnable http://www.mailenable.com/standard_edition.asp
SmarterMail http://www.smartertools.com/smartermail/mail-server-software.aspx
hMailServer http://www.hmailserver.com/
Search for more: Google
I am setting up the email option on sql server 2012 in a windows azure cloud Virtual Machine. The email is not working and im getting the following error :
Error,15,The mail could not be sent to the recipients because of the mail server failure. (Sending Mail using Account 2
(2012-07-02T11:13:17).
Exception Message: Cannot send mails to mail
server. (The remote certificate is invalid according to the validation
procedure.).),3152,5,,7/2/2012 11:13:17 AM,sa
07/02/2012 11:12:05,,Error,14,The mail could not be sent to the recipients because of the mail server failure. (Sending Mail using
Account 2 (2012-07-02T11:12:05).
Exception Message: Cannot send mails
to mail server. (The remote certificate is invalid according to the
validation procedure.)
Should I have an end point 25 on my vm ? What else could cause this error ?
Looks like there is an issue with the outbound stmp server you are trying to use. Is this also hosted in Windows Azure or an external provider somewhere? In both cases, make sure they allow inbound, authenticated connections and on what port. There shouldn't be any blocks on outbound connections on your Windows Azure virtual machine, so odds are the problem is where the email server is hosted.