Comments on: Sendmail & Spam Filter Tricks in Rails

By: renuka

renuka — Sat, 20 Dec 2008 04:26:52 +0000

Hi Fred and Llya

Thank You very much for reply.

Now i have created my own message id :)

By: fred

fred — Fri, 19 Dec 2008 18:14:59 +0000

using “ActionMailer::Base.delivery_method = :smtp” will make Tmail generate the correct RFC compliant message_id for you, thus you can save it in the DB.

if you use “ActionMailer::Base.delivery_method = :sendmail” you will not be able to get the message_id, (unless you generate one?) because postfix will generate the message_id for you since it will not find it.

a message_id generated by TMAIL (in the smtp method) will look like this:

49atdd74535c2_5c153fa9a341c60c1c1@myhostname.tmail

and a message_id generated by Postfix will look like this:

20081219173516.5B0AG261100@myrealdomain.com

remember that message_id must VERY unique to conform to RFC standards….

this post explains it very well:

http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/297238

By: Ilya Grigorik

Ilya Grigorik — Fri, 19 Dec 2008 13:41:46 +0000

Renuka, why not generate your own? Take the to address, add a timestamp, and you have a fairly unique ID right there.

By: renuka

renuka — Tue, 16 Dec 2008 07:12:36 +0000

hi,

I am using this sendmail but i have one problem i want to store message id into database but i am not able to get message id using like mail.message_id so can anyone tell me what should i do for that?

Thanks,

By: max

max — Wed, 01 Oct 2008 23:05:07 +0000

thank you so much for this!

By: matt

matt — Fri, 25 Jul 2008 14:41:13 +0000

Thanks for the article, it has saved a lot of time.

By: nhm tanveer hossain khan (hasan)

nhm tanveer hossain khan (hasan) — Fri, 20 Jun 2008 06:25:20 +0000

thanks for your blog,
i had similar problem, i think now it has been fixed.
previously i was using fake email address for example - “dont-reply@….” but this address wasn’t physically exists.
instead this fake email i have set a real email address. now it seems like working.

best wishes,

By: Ilya Grigorik

Ilya Grigorik — Mon, 07 Apr 2008 11:20:45 +0000

Peter, thanks for sharing the links! Another great resource I found recently is: http://www.campaignmonitor.com/help/topic.aspx?t=88

By: Peter Michaux

Peter Michaux — Sun, 06 Apr 2008 19:38:36 +0000

I’ve set up reverse DNS, and SPF and they are working into hotmail junkmail…sometimes

Depending on the content of my email it goes into junkmail and other times doesn’t arrive at all. If there are too many links in the email, for example, it seems that the email never arrives.

Microsoft actually has pages to help people like us

http://postmaster.msn.com/

http://postmaster.msn.com/Troubleshooting.aspx

I’m signing up for the Junk Mail reporting program and hopefully that will help

http://postmaster.msn.com/Services.aspx#JMRPP

By: Ilya Grigorik

Ilya Grigorik — Thu, 27 Dec 2007 04:54:10 +0000

Jake, this stuff is black art. I would do some research on the network you’re sending your messages from. It’s not uncommon for major providers to blacklist virtually all unknown/dynamic hosts. Likewise, you may want to spend some time on optimizing the actual content of your email.

From experience, HTML that validates helps quiet a bit!