# ArgumentError when setting ActionMailer

**URL:** <https://www.ruby-forum.com/t/argumenterror-when-setting-actionmailer/142847>\
**Category:** Rails\
**Created:** [July 12, 2008, 3:32am UTC](https://www.ruby-forum.com/t/argumenterror-when-setting-actionmailer/142847 "2008-07-12T03:32:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![adinda\_p](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/5fc32e/32.png) [@adinda\_p](https://www.ruby-forum.com/u/adinda_p)\
**Post date:** [July 12, 2008, 3:32am UTC](https://www.ruby-forum.com/t/argumenterror-when-setting-actionmailer/142847/1 "2008-07-12T03:32:40Z")

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Hi all,

I don’ know what’s wrong in my setting. I put as it said in books,  
tutorials  
and recheck it in the api ref.

ActionMailer::Base.delivery\_method :sendmail

When i start the server (Mongrel), i got this error:

config/environment.rb:62:in `delivery\_method’: wrong number of arguments  
(1  
for 0) (ArgumentError)

Did i miss something?

Thanks,

Dida

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<div class="post-metadata">

**Author:** ![adinda\_p](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/5fc32e/32.png) [@adinda\_p](https://www.ruby-forum.com/u/adinda_p)\
**Post date:** [July 12, 2008, 4:30am UTC](https://www.ruby-forum.com/t/argumenterror-when-setting-actionmailer/142847/2 "2008-07-12T04:30:38Z")

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Hi –

On Sat, 12 Jul 2008, Adinda P. wrote:

> for 0) (ArgumentError)
> 
> Did i miss something?

Yes: an equal sign 🙂

ActionMailer::Base.delivery\_method = :sendmail

In the API docs you’ll see this, above the section that lists  
deliver\_method as one of the things you can tweak:

These options are specified on the class level, like  
ActionMailer::Base.template\_root = “/my/templates”

That means that for everything that follows, you should use that style  
of assignment.

David

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