Comments on: Sending Email from EC2 http://shlomoswidler.com/2009/07/sending-email-from-ec2.html Cloud Developer Tips: Practical tips for developers of cloud computing applications. Tue, 31 Jan 2012 07:15:49 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Matt's Blog » Thinkup on Amazon EC2http://shlomoswidler.com/2009/07/sending-email-from-ec2.html/comment-page-1#comment-866 Matt's Blog » Thinkup on Amazon EC2 Fri, 06 Jan 2012 12:18:35 +0000 http://orchestratus.com/shlomoswidler.com/?p=4#comment-866 [...] There seem to be workarounds that can be used to enable EC2 originated emails to be received, but it’s not really worth it if you’re just experimenting. Details can be found here: http://shlomoswidler.com/2009/07/sending-email-from-ec2.html [...] [...] There seem to be workarounds that can be used to enable EC2 originated emails to be received, but it’s not really worth it if you’re just experimenting. Details can be found here: http://shlomoswidler.com/2009/07/sending-email-from-ec2.html [...]

]]> By: shlomohttp://shlomoswidler.com/2009/07/sending-email-from-ec2.html/comment-page-1#comment-2 shlomo Mon, 01 Feb 2010 10:27:38 +0000 http://orchestratus.com/shlomoswidler.com/?p=4#comment-2 @slitz,<br /><br />You don't need a premium account to send email via Gmail using code. Here's a link to some examples for how to do it in Java:<br /><br />http://stackoverflow.com/questions/46663/how-do-you-send-email-from-a-java-app-using-gmail @slitz,

You don't need a premium account to send email via Gmail using code. Here's a link to some examples for how to do it in Java:

http://stackoverflow.com/questions/46663/how-do-you-send-email-from-a-java-app-using-gmail

]]> By: slitzhttp://shlomoswidler.com/2009/07/sending-email-from-ec2.html/comment-page-1#comment-3 slitz Sun, 31 Jan 2010 03:22:17 +0000 http://orchestratus.com/shlomoswidler.com/?p=4#comment-3 hello,<br /><br />Can you point out where can I read about using Google Apps email to send email? I though I needed a Premium account for that...<br /><br />Thank you! hello,

Can you point out where can I read about using Google Apps email to send email? I though I needed a Premium account for that…

Thank you!

]]> By: Michael Klatskyhttp://shlomoswidler.com/2009/07/sending-email-from-ec2.html/comment-page-1#comment-4 Michael Klatsky Thu, 07 Jan 2010 19:04:12 +0000 http://orchestratus.com/shlomoswidler.com/?p=4#comment-4 @rob- wondering whether you have had success with the above setup. I have setup my MTA and my clients as well, however for some reason I am still getting a relay access denied. I believe I am having an issue with the certificates on the client side. I'd be most interested in your experiences.<br /><br />Cheers!<br /><br />Michael Klatsky<br />TnR Global, LLC @rob- wondering whether you have had success with the above setup. I have setup my MTA and my clients as well, however for some reason I am still getting a relay access denied. I believe I am having an issue with the certificates on the client side. I'd be most interested in your experiences.

Cheers!

Michael Klatsky
TnR Global, LLC

]]> By: Rob Staveley (Tom)http://shlomoswidler.com/2009/07/sending-email-from-ec2.html/comment-page-1#comment-5 Rob Staveley (Tom) Thu, 01 Oct 2009 12:27:25 +0000 http://orchestratus.com/shlomoswidler.com/?p=4#comment-5 I've not bitten the bullet yet, but I'll need to, so once again I'm reading your excellent blog with interest.<br /><br />I'm planning to set up the company domain's MTA to allow relay to clients, which have certificates signed by a local Certificate Authority, which the MTA trusts, and have all servers instantiated in EC2 use TLS for SMTP with client certificates.<br /><br />For my applications, it is good enough to put the client private key and signed certificate and the necessary set up for SendMail into my basic AMI. <br /><br />I'm planning to use a dedicated Certificate Authority for this purpose because it is a closed network - i.e. I'll be using the CA Perl script you get with OpenSSL.<br /><br />My company's MTA is Postfix, so this should be easy enough to configure. If I was in a bigger company I'd probably lobby for a dedicated MTA for a MX subdomain, hosted on a low-cost mini-server with reverse DNS lookup. Here in the UK, there is a non-cloud company I use for that called Memset.<br /><br />I'll let you know if I get burned :-) I've not bitten the bullet yet, but I'll need to, so once again I'm reading your excellent blog with interest.

I'm planning to set up the company domain's MTA to allow relay to clients, which have certificates signed by a local Certificate Authority, which the MTA trusts, and have all servers instantiated in EC2 use TLS for SMTP with client certificates.

For my applications, it is good enough to put the client private key and signed certificate and the necessary set up for SendMail into my basic AMI.

I'm planning to use a dedicated Certificate Authority for this purpose because it is a closed network – i.e. I'll be using the CA Perl script you get with OpenSSL.

My company's MTA is Postfix, so this should be easy enough to configure. If I was in a bigger company I'd probably lobby for a dedicated MTA for a MX subdomain, hosted on a low-cost mini-server with reverse DNS lookup. Here in the UK, there is a non-cloud company I use for that called Memset.

I'll let you know if I get burned :-)

]]> By: shlomohttp://shlomoswidler.com/2009/07/sending-email-from-ec2.html/comment-page-1#comment-6 shlomo Wed, 16 Sep 2009 08:56:59 +0000 http://orchestratus.com/shlomoswidler.com/?p=4#comment-6 @jarred,<br /><br />Hotmail seems to be very sensitive to the headers in the email message. Here is an article I found helpful:<br />http://ask.slashdot.org/article.pl?sid=06/06/22/2248253 @jarred,

Hotmail seems to be very sensitive to the headers in the email message. Here is an article I found helpful:
http://ask.slashdot.org/article.pl?sid=06/06/22/2248253

]]> By: jarredhttp://shlomoswidler.com/2009/07/sending-email-from-ec2.html/comment-page-1#comment-7 jarred Wed, 16 Sep 2009 07:08:57 +0000 http://orchestratus.com/shlomoswidler.com/?p=4#comment-7 My elastic IP is not listed in Spamhaus, SpamCop, nor CBL...and Hotmail (an msn.com address) is putting my instances mail into its Junk folder. I have a full fledged SPF and MX records setup appropriately...no dice. I wonder if there's a way to apply to be white listed... My elastic IP is not listed in Spamhaus, SpamCop, nor CBL…and Hotmail (an msn.com address) is putting my instances mail into its Junk folder. I have a full fledged SPF and MX records setup appropriately…no dice. I wonder if there's a way to apply to be white listed…

]]> By: deepakhttp://shlomoswidler.com/2009/07/sending-email-from-ec2.html/comment-page-1#comment-8 deepak Mon, 24 Aug 2009 17:38:03 +0000 http://orchestratus.com/shlomoswidler.com/?p=4#comment-8 good work Shlomo,<br /><br />just wanted to share my experience with the same problem: - <br />I changed the server's IP address, but before changing it, I got 4 elastic IPs & checked them on http://www.spamhaus.org/pbl/index.lasso whether it is listed in the block list or not, 4th ip was not listed in the policy block list, then I released the other ips & assigned the 4th ip to the server, now the mails from this server are not getting rejected by yahoo, rediff & hotmail also the mails are not labelled as spam.<br /><br />Thanks,<br />Deepak good work Shlomo,

just wanted to share my experience with the same problem: –
I changed the server's IP address, but before changing it, I got 4 elastic IPs & checked them on http://www.spamhaus.org/pbl/index.lasso whether it is listed in the block list or not, 4th ip was not listed in the policy block list, then I released the other ips & assigned the 4th ip to the server, now the mails from this server are not getting rejected by yahoo, rediff & hotmail also the mails are not labelled as spam.

Thanks,
Deepak

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