THthenduks·Apr 8, 2014
letter_opener[1] is really useful to avoid the test account + wait situation. Well, now you can just use mailer previews, I guess :)
[1]: https://github.com/ryanb/letter_opener
In Rails 4.1.0 releasedryanb
letter_opener
Ruby2011–2014
ryanb / letter_opener
letter_opener
Preview mail in the browser instead of sending.
4Distinct people
4Mentions
0Explicit recommenders
3.8KGitHub stars
What to know before exploring
What it is
Preview mail in the browser instead of sending.
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
No recommendation phrase was found in the indexed comments.
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Also in these discussions
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This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by month4 dated mentions
Observed mentions: 2011-09-07 21:50:58 UTC to 2014-04-08 21:56:25 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| Sep 2011 | 2011-09-01 00:00:00 UTC | 2011-10-01 00:00:00 UTC | 1 | 1 | 0 |
| Oct 2011 | 2011-10-01 00:00:00 UTC | 2011-11-01 00:00:00 UTC | 0 | 0 | 0 |
| Nov 2011 | 2011-11-01 00:00:00 UTC | 2011-12-01 00:00:00 UTC | 0 | 0 | 0 |
| Dec 2011 | 2011-12-01 00:00:00 UTC | 2012-01-01 00:00:00 UTC | 0 | 0 | 0 |
| Jan 2012 | 2012-01-01 00:00:00 UTC | 2012-02-01 00:00:00 UTC | 0 | 0 | 0 |
| Feb 2012 | 2012-02-01 00:00:00 UTC | 2012-03-01 00:00:00 UTC | 0 | 0 | 0 |
| Mar 2012 | 2012-03-01 00:00:00 UTC | 2012-04-01 00:00:00 UTC | 0 | 0 | 0 |
| Apr 2012 | 2012-04-01 00:00:00 UTC | 2012-05-01 00:00:00 UTC | 0 | 0 | 0 |
| May 2012 | 2012-05-01 00:00:00 UTC | 2012-06-01 00:00:00 UTC | 0 | 0 | 0 |
| Jun 2012 | 2012-06-01 00:00:00 UTC | 2012-07-01 00:00:00 UTC | 0 | 0 | 0 |
| Jul 2012 | 2012-07-01 00:00:00 UTC | 2012-08-01 00:00:00 UTC | 0 | 0 | 0 |
| Aug 2012 | 2012-08-01 00:00:00 UTC | 2012-09-01 00:00:00 UTC | 0 | 0 | 0 |
| Sep 2012 | 2012-09-01 00:00:00 UTC | 2012-10-01 00:00:00 UTC | 1 | 0 | 1 |
| Oct 2012 | 2012-10-01 00:00:00 UTC | 2012-11-01 00:00:00 UTC | 0 | 0 | 0 |
| Nov 2012 | 2012-11-01 00:00:00 UTC | 2012-12-01 00:00:00 UTC | 0 | 0 | 0 |
| Dec 2012 | 2012-12-01 00:00:00 UTC | 2013-01-01 00:00:00 UTC | 0 | 0 | 0 |
| Jan 2013 | 2013-01-01 00:00:00 UTC | 2013-02-01 00:00:00 UTC | 0 | 0 | 0 |
| Feb 2013 | 2013-02-01 00:00:00 UTC | 2013-03-01 00:00:00 UTC | 0 | 0 | 0 |
| Mar 2013 | 2013-03-01 00:00:00 UTC | 2013-04-01 00:00:00 UTC | 0 | 0 | 0 |
| Apr 2013 | 2013-04-01 00:00:00 UTC | 2013-05-01 00:00:00 UTC | 0 | 0 | 0 |
| May 2013 | 2013-05-01 00:00:00 UTC | 2013-06-01 00:00:00 UTC | 0 | 0 | 0 |
| Jun 2013 | 2013-06-01 00:00:00 UTC | 2013-07-01 00:00:00 UTC | 0 | 0 | 0 |
| Jul 2013 | 2013-07-01 00:00:00 UTC | 2013-08-01 00:00:00 UTC | 0 | 0 | 0 |
| Aug 2013 | 2013-08-01 00:00:00 UTC | 2013-09-01 00:00:00 UTC | 0 | 0 | 0 |
| Sep 2013 | 2013-09-01 00:00:00 UTC | 2013-10-01 00:00:00 UTC | 0 | 0 | 0 |
| Oct 2013 | 2013-10-01 00:00:00 UTC | 2013-11-01 00:00:00 UTC | 0 | 0 | 0 |
| Nov 2013 | 2013-11-01 00:00:00 UTC | 2013-12-01 00:00:00 UTC | 0 | 0 | 0 |
| Dec 2013 | 2013-12-01 00:00:00 UTC | 2014-01-01 00:00:00 UTC | 1 | 0 | 1 |
| Jan 2014 | 2014-01-01 00:00:00 UTC | 2014-02-01 00:00:00 UTC | 0 | 0 | 0 |
| Feb 2014 | 2014-02-01 00:00:00 UTC | 2014-03-01 00:00:00 UTC | 0 | 0 | 0 |
| Mar 2014 | 2014-03-01 00:00:00 UTC | 2014-04-01 00:00:00 UTC | 0 | 0 | 0 |
| Apr 2014 | 2014-04-01 00:00:00 UTC | 2014-05-01 00:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
4 sourcesThe letter_opener gem is pretty handy to avoid that:
https://github.com/ryanb/letter_opener
Or, you could easily just create controller actions which render your emails as well:
@body = mail.body.parts[1].html_part.body.raw_source
render '/mailer_notification/preview.html', :layout => false
And in preview.html.erb:
<%= raw(@body) %>
In Rails 4.1.0 beta1 releasedWe've been using letter_opener (https://github.com/ryanb/letter_opener), which handles the "preview" case very well (opens the rich text and plain emails in separate browser tabs on send). Doesn't do the other stuff that mails_viewer does, but a good lightweight alternative.
In Announcing mails_viewer - easiest way to test mails in Rails appPreview mail in the browser instead of sending: ryanb/letter_opener
1 points · Open discussion