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Re: Send Email with "deliverMessage"
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Re: Send Email with "deliverMessage"


  • Subject: Re: Send Email with "deliverMessage"
  • From: Lorenzo <email@hidden>
  • Date: Sat, 10 Apr 2004 10:41:28 +0200

Hi,
thank you so much for you detailed info.
I am thinking to let the user define SMTP, To, From, within my application
itself. So I will be able to forget IC, Mail app, and whatever else.
Somethings on Mac are still a little bit confused, but you know, this is the
product of the history, the result of the evolution and its traces.

I will find the best solution. Thanks.

Best Regards
--
Lorenzo
email: email@hidden

> From: Julien Dufour <email@hidden>
> Date: Fri, 09 Apr 2004 17:55:33 +0200
> To: Lorenzo <email@hidden>
> Cc: cocoa-dev Apple <email@hidden>
> Subject: Re: Send Email with "deliverMessage"
>
>
> On Apr 7, 2004, at 14:41, Lorenzo wrote:
>
>> Hi,
>>
>> with my and some other computers my application can send emails with
>> the API
>> --
>> [NSMailDelivery deliverMessage:...
>> --
>> but some other people cannot. They can quite send emails through "Apple
>> Mail" application. They well defined an account there, the password,
>> the
>> SMTP... so they can send emails with "Apple Mail" application.
>> They have no firewall on outgoing messages.
>>
>> What else should I check and fix?
>
> Hello
>
> The NSMailDelivery API is currently rather unreliable when used in a
> product targeting a large public. In fact, it can be laborious to get
> working the first time, but once a user has succeeded sending one
> message, it works fine.
>
>
> The secret shelter of the beast:
>
> According to my investigations, the issues are related to the way it
> retrieves the mail settings (outgoing mail server (SMTP) and e-mail
> address of the sender). This information is dug from both Mail.app
> preferences and Internet Config settings. Mail.app is always having
> priority, so IC is consulted only when Mail.app has never been
> configured.
>
> In Mail.app, the first e-mail address in the list of the first e-mail
> account is retrieved (I haven't checked wether disabled accounts are
> ignored or not, I guess not). The retrieved SMTP server is the first
> one of the list of SMTP servers, *regardless* of the ones set in the
> e-mail accounts!
>
> Internet Config works simpler, there is only one entry for each setting
> (kICSMTPHost and kICEmail). Although the Internet preference pane has
> gone under Panther, the IC settings are still taken into account when
> they are available. The users which have upgraded from Jaguar and
> preserved their account may have some values set up in their
> preferences.
>
>
> It is easy to fall:
>
> Here is the most common troubles:
>
> 1/ No SMTP servers can be found => the deliverMessage: methods return
> NO immediately.
> 2/ An invalid SMPT server has been found => the deliverMessage: methods
> return NO after trying to contact the server, this may take some time.
> 3/ The found SMTP server and e-mail address don't match so that the
> SMTP refuses to relay the message => the deliverMessage: methods return
> YES since the message has been delivered to the server, but it never
> reaches the recipient. However, the sender is likely to receive a
> warning from the SMTP server.
>
>
> Where it becomes really fun:
>
> Even when the issue has been identified for a given user, the game is
> not finished. In Mail.app, the are no ways to reorder the SMTP servers.
> Under Panther, it is only possible to create, modify and delete
> servers, under Jaguar, it is even no possible to delete them! A short
> excursion in ~/Library/Preferences/com.apple.mail.plist may be
> required. As stated above, the Internet preference pane is not
> available under Panther. Thus, it is not directly possible to modify
> the IC settings, another excursion in the preference files may have to
> be scheduled.
>
>
> The good news:
>
> When the user is using Mail.app, has a single mailbox, and has
> configured the application using the initial assistant, everything
> should be ok. I guess/hope it is the case of a lot of users. Things can
> become tricky when the user is using Mail.app with multiple mailboxes.
> However, if he was able to configure multiple accounts, we can suppose
> he should be able to change the settings to get NSMailDelivery working
> if something is wrong. Finally, when the user is using another e-mail
> client, he just has to run Mail.app once to configure it (not to hard).
>
>
> Last note. I have investigated under both Jaguar and Panther, but not
> under Puma or Cheetha. Moreover, there are no ways to know what
> NSMailDelivery is really doing, so this information may be wrong or
> incomplete.
>
>> Best Regards
>> --
>> Lorenzo
>> email: email@hidden
>
> Best regards.
>
> Julien Dufour
> Inferiis - http://www.inferiis.com
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