What would be a good starting point for me to learn about creating an email server?
Basically, what I want to do is have a server (such as foo.com) recieving mail for me so if I send an email to (blah#foo.com) it will dump the contents of the email into /mail/blah/subject and then send it off to my REAL email account.
I'm looking to do this as a programming exercise, so links to RFCs, etc. would be nice. Reinventing the wheel is a good way to learn about wheels.
EDIT: Feel free to retag this appropriately.
Edit: I provided some headings and divided RFCs by topic. I hope it's more accessible now. It's quite a list, and I wish I could format it any better, but unfortunately, that's about it.
Since you mentioned you don't really know what you need, let me clarify:
If you only want to implement a simple "proxy" server that sits in between your MUA (email client) and "real" server, you can probably get away with only implementing basic SMTP functionality. This will allow you to send messages, i.e. to submit messages to an MTA.
POP3 is for email clients to pull messages off of your server, while IMAP is an alternative to POP3 with a somewhat different feature set, mainly providing an on- or offline mode which can be thought of like managing remote folders (i.e. mailboxes).
MIME specifies the format of the contents of e-mail messages in presence of multi-part messages, attachments etc.
Internet Message format (also defines e-mail address format)
http://www.faqs.org/rfcs/rfc822.html
http://www.faqs.org/rfcs/rfc2822.html
SMTP:
http://www.faqs.org/rfcs/rfc821.html
Update to SMTP/RF821:
http://www.faqs.org/rfcs/rfc5321.html
SMTP-AUTH:
http://www.faqs.org/rfcs/rfc2554.html
Message submission (i.e. for the application to be acting as a MUA):
http://www.faqs.org/rfcs/rfc2476.html
IMAPv4:
http://www.faqs.org/rfcs/rfc1730.html
IMAPv4rev1:
http://www.faqs.org/rfcs/rfc2060.html
POP3:
http://www.faqs.org/rfcs/rfc1081.html
http://www.faqs.org/rfcs/rfc1939.html
http://www.faqs.org/rfcs/rfc1957.html
POP3 extensions:
http://www.faqs.org/rfcs/rfc2449.html
Authorization for POP/IMAP:
http://www.faqs.org/rfcs/rfc2195.html
TLS for POP3 and IMAP:
http://www.faqs.org/rfcs/rfc2595.html
AUTH-RESP-CODE for POP3:
http://www.faqs.org/rfcs/rfc3206.html
POP3 simple authentification:
http://www.faqs.org/rfcs/rfc5034.html
MIME, which is composed of 5 RFCs:
http://www.faqs.org/rfcs/rfc2045.html
http://www.faqs.org/rfcs/rfc2046.html
http://www.faqs.org/rfcs/rfc2047.html
http://www.faqs.org/rfcs/rfc4288.html
http://www.faqs.org/rfcs/rfc4289.html
http://www.faqs.org/rfcs/rfc2049.html
Related
We from the the Swiss umbrella association for youth parliaments (DSJ) use TYPO3 as the backbone of our website. Next to TYPO3, we also use the CRM software hitobito, which allows us to create "Abos" with "mailing lists". However, this service is currently not working since Hitobito has recently changed its mail server. I have already changed the server addresses manually in our 365 Admin microsoft account and the changes have been verified by the Hitobito support.
This is where TYPO3 comes into play. The support staff from Hitobito suspects that the mail server configurations must also be changed in TYPO3. I, as a layman, have no clue where to make such changes, however. I was hoping you could help me out here. I believe the following information must be updated in the TYPO3 configuration:
*For the new mail server:
crm.dsj.ch IN MX 10 app.hitobito.ch.
For the outgoing mail server:
crm.dsj.ch 3600 IN TXT "v=spf1 a:mxout.appuio.ch -all*
The information you gave has nothing to do with TYPO3 but is part of the domain record. You should approach your domain registrar (seems to be https://www.visol.ch/ according to whois) with that.
The 1st one is to designate the mail server app.hitobito.ch for all incoming mail to recipients ...#crm.dsj.ch (so-called MX record).
And the 2nd one is to lower the spam level for outgoing mails from senders ...#crm.dsj.ch from the server mxout.appuio.ch (so-called SPF).
Is your webserver supposed to send mails, too? If so and you have problems with receiving these mails, I suggest to use the InstallTool's "test mail" function and send a mail to https://www.mail-tester.com/ - a great tool to identify spam-related problems.
We have set up Odoo 8 as a multi-user helpdesk tool, which creates a new project issue for each incoming mail. Incoming and outgoing servers are configured correctly and system parameters are set to
mail.catchall.domain: company.tld
mail.catchall.alias: helpdesk
mail.bounce.alias: bounce
The problem now is that every time a user comments the mail thread to answer the original issue creator, a new mail is generated with header
FROM: [user]#company.tld
TO: [followers]
REPLY-TO: helpdesk#company.tld
Which is totally fine but leads to a sending failure due to our SMTP configuration. To get around this we want to achieve that all outgoing E-Mails are sent from the same specified address, like helpdesk#company.tld, no matter which user response to the thread.
How do we achieve this?
I had specific issue when I was working on Odoo 8 and I found fix but its not recommended action from developer view, because changing odoo source code is not recommended and changes can be lost.
So what I did was to change email from address to real email from address. Yes it's weird but that's how Odoo works. Odoo is always sending from one specific email address and changes email from to user email address, but if you will look at email carefully you will notice that real sender is always same.
The fix is changing this line
smtp_from = message['Return-Path']
to this line
smtp_from = tools.config.get('email_from')
in openerp/addons/base/ir/ir_mail_server.py file.
PS I don't like this solution.
I am planning to add in the message carbon function(when a user is logged into multiple device and send a message or/receive a message, it will sync between all devices) for a chat server, i am running on Ejabberd and using strophe.js...
I am wondering if there are plugin written for Ejabberd that i can install and also for strophe.js???
I looked over https://github.com/processone/ejabberd-contrib and the github for strophe.js
None of them seem to have plugins for message carbon. Wondering if anyone has this implemented before??
I have read that if it doesnt, i should treat it as a groupchat??? I am not sure why that would work??? And not exactly sure if thats good for the resources, and what if it scales up, would that have impact on the overall structure.
If it is treated as a group chat, then i assume each resource/session would be treated as a different user? Then when a message is sent into that group, all of those other session/users are updated, so even there are 2 users??
ejabberd supports message carbons as default in latest version.
This feature is unrelated to groupchat and cannot and should not be treated similarly.
If you read XEP-0280 Message Carbons you should see that sending a packet similar to the following is enough to enable it:
<iq id='enable1' type='set'>
<enable xmlns='urn:xmpp:carbons:2'/>
</iq>
You may find also valuable information in XMPP Academy video #2 at 27m30s.
We are in the process of converting a batch job that processes our bounced emails that we send. We are switching from Redemption to EWS (just upgraded to Exchange 2010 from Exchange 2003). As you know bounced emails come in different forms. I have been able to work through all the test case emails i've got except for the ones that come in the form of:
Your message did not reach some or all of the intended recipients.
Subject: Hello
Sent: 4/01/2012 8:16 AM
The following recipient(s) cannot be reached:
hi#foo.com on 4/01/2012 8:19 AM
The e-mail system was unable to deliver the message, but did not report a specific reason. Check the address and try again. If it still fails, contact your system administrator.
smtp.mydomain.com #5.0.0 smtp; 5.3.0 - Other mail system problem 554-"delivery error: dd This user doesn't have a foo.com account (hi#foo.com) [-5] - mail.foo.com" (delivery attempts: 0)>
This is what is displayed in outlook. When i read the email with EWS the Body is empty. I need to look at the information above when i get the email with EWS. The emails have an attachment (which is the original email) though it doesn't look that way in outlook. I've tried to look at almost all the properties that comes back from EWS and have yet been able to find the text above. Redemption allow you to look at this info using ReportText. What we are specifically looking for is the email error delivery code. We do different things based on this code.
Edit: To be clearer the Body Property on my other test cases isn't empty. I'm loading the emails like:
Dim emailPset = New PropertySet(BasePropertySet.FirstClassProperties)
emailPset.RequestedBodyType = BodyType.Text
Dim f = EmailMessage.Bind(email.Service, email.Id, emailPset)
Update1: After some research it looks like i need to be able to read the Recipients table of the message in the PR_NDR_STATUS_CODE & PR_REPORT_TEXT fields. Still searching if there is a way to do this in EWS.
We were able to get enough info the
smtp.mydomain.com #5.0.0 smtp; 5.3.0 - Other mail system problem 554-"delivery error: dd This user doesn't have a foo.com account (hi#foo.com) [-5] - mail.foo.com" (delivery attempts: 0)>
part which is what we needed by telling the object to load the MIME content.
Definitely not the most straight forward API to use but hopefully we don't hit any more hickups.
I have an orchestration that receives an XML with some email properties(like: to, from, cc, subject, etc..).
Then I want to send the emailmessage with a dynamic port (and I assigned some of the values according the input xml). After the email has been sent, I want to do some further processing but that processing may only execute when the mail has been delivered succesfully on the SMTP server.
In the functional design they want to have a retry per hour and maximum of one day, after that periode a message must be in the EventLog when it cannot be delivered successfully.
Therefore I set the dynamic port with the context properties BTS.RetryCount to 23 and BTS.RetryInterval to 60.
I have set the dynamic SMTP port delivery notification to "Transmitted" and I have a catch exception block to catch the DeliveryFailureException.
Is this enough ?
It is a litte bit confusing for me reading several blogs if I should mark the scope Synchronized...
Patrick,
You're right, the documentation on this aspect of BizTalk delivery notification is scarce and confusing. After extensive testing, I have not been able to identify a difference wether the Scope is set to Synchronized = true; or not.
The official documentation for the Synchronized setting only applies to shared variables when used in both branches of a Parallel execution.
As for the Delivery Notification itself, I'm currently facing a problem in production where the FILE adapter produces its ACK event before the entire contents of the file is written to the output folder - it renders this part of the solutiong useless!