This question already has an answer here:
Is SMTP server required to send mail through web server, by using JavaMail API?
(1 answer)
Closed 8 years ago.
JavaMail sends e-mails using an e-mail server, typically through the SMTP interface of an e-mail provider. Is it necessary to use an e-mail server to send e-mails?
I have a web site that will send e-mails and if possible I'd like to send the e-mails directly from the web site code without using an e-mail server. The JavaMail FAQ says that an e-mail server is required.
Is there a way to send e-mails without using an e-mail server, either with JavaMail or another API?
You need an e-mail server. When you send an email from your address to another address. you are really sending it to a mail server. The protocol used to send to the server is (usually) SMTP.
You can deliver an email directly to one of the SMTP servers mentioned in the MX record of the address's domain. Usually that is a bad idea,though:
Delivering the mail to a local server is fast - you can almost immediately continue and do something else and let the server handle the delivery.
The actual delivery can take some time, for instance the remote mail server might be slow. Or it might reject the mail first - it is a known strategy against spam to tell a sender to try sending a mail a second time, which some spam bots won't do.
Also the mail server can easily try again a day later or so when the remote server is down, this reduces risk of lost mail.
i found using google SMTP as easy way to send mail.
Related
I am using javax.mail API for sending the mails in a web application, where I am able to send the email to all domains.
In the same application, I am exposing a webservice which will accept the input data and send a email with an attachment. I am using the same code for sending the mails. But, the email is sending only to the internal domain users(Ex: username#mydomain.com) .The email is not sent to external domains (Ex:username#gmail.com/username#yahoo.com) .
Kindly help me if anybody knows what could be the reason.Please let me know if you need any additional information.
The SMTP relay host is restricting the email which are sent from email address with other domain names(From Address Ex:uesrname#gmail.com / uesrname#yahoo.com) to an external domain. After using a valid from address(username#mydomain.com), I am able to send email to external domain as well.
I have developed an app with a login. To help users I would like to send a mail reminding their credentials.. 2 solutions but 2 problems:
1) If I send the mail from the mobile phone (using my gmail account and mail.jar library) Google always reports a possible violation of my account or a suspect access, blocking it. I read several forum page about remove this feature but some people say that Gmail is built to be used by a single person
2) If I send a mail from a php page (using the function mail($mailto,$subject,$message,$header) several mail server put automatically this email into the trash folder.
Any suggestion? How to solve this issue?
Thank you in advance
You could send mail in java (mail.jar or mailServices of Spring Framework). I suggest you to use a mail provider service to send mail. It's better because there many things to care with when you send email ( email does not exist, delay of receiving the email, the current status of email sent, received or read...)
I have been using Java mail API to send mails generated through the Java program. What I want to do now is to send a mail through Thunderbird mail client so that the mail get saved to the sent items folder of the user and the user can resend a mail if it has failed.
I also would like to know if it's possible to get a delivery report in the Java mail API.
Edit
I found out that our mail server is POP3 and it doesn't store mail. So is it a good idea to send another mail to the sender as well and define a rule that categorize those messages?
even if you send it with the java mail api (well gmail at least), you will still be able to see in the sent folder using thunderbird. as a matter of fact, 5 minutes ago, I saw this using a website that I build. I am sending emails using Java API, and when I check the send folder I can see them.
The InBox / Outbox in Thunderbird are normally mapped ti your IMAP-Account. The IMAP-Account is set on a mail server. All your mails and folders are stored on that mail server. the client (Thunderbird) only shows the contant from the server. By remote calls (IMAP-protocol) you can create/delete/edit/move folders and mails on the server. Sending a mail is not part of IMAP. Here you use the SMTP-Protocol. When you configure a mailaccount in Thunderbird you must configure IMAP & SMTP. When you send a mail Thunderbird does the following steps:
- Send Mail by SMTP-Protocol
- Create Mail in Outbox by IMAP-Protocol
SMTP & IMAP are totally different. But if you want to send a mail and see this mail in your outbox you must use both. You can program the same workflow with the java mail api.
If I get your question right, you are looking for a way to trigger mail sending via Mozilla Thunderbird from a Java program (an external program / software running on the same local machine).
You can achieve that via different methods:
calling the Thunderbird binary with command-line arguments
via SimpleMAPI, which Thunderbird supports
via XPCOM, also built into Thunderbird
What you won't be able to achieve easily is getting feedback from Thunderbird about the outcome of triggering / prompting the user to send a mail. But you could achieve that by using more difficult ways of integrating Thunderbird with your external software:
read and parse the actual MBOX inbox / mail sent / profile files in a user's profile. "using the X-Mozilla-Status headers (you could) figure out if a message is a new message (etc). A mbox file is essentially just a flat text file that has a seperator between the messages" (parentheses by me, source)
Write a bridging WebExtension Thunderbird Add-On that integrates in some way with your software. An extension has, via Thunderbird's WebExtensions API, essentially a hook for every feature Thunderbird has and your code Add-On could expose these internals in some way to your software.
AFAIK and sadly Thunderbird, as it ships, exposes no API or similar interface out of the box.
I want to be able to send an email to an email address, and then have it appear on a web page. Is this possible?
My guess is you'd have to write your own email server, something which I am not capable of doing. So I am assuming this won't be possible for me.
But if there is some way it can be done, that would be great. I generally program in Java and use Tomcat as my app server.
No, you wouldn't have to run your own SMTP server. You'd simply need to be able to retrieve mail from a POP3 or IMAP server, using something like the mail client API found in javax.mail.
It would be up to you to decide how much control you'd give to users. For example, who specifies the IMAP settings? Who decides which messages to fetch and display? Maybe that's all pre-configured. Maybe you write full-featured, web-based email client that can send messages as well as retrieve. This is all determined through the design of your web application.
You don't need to write your own mail server. You can use an ordinary (external) mail server and poll its inbox via POP3 or IMAP from your software. This introduces a short delay up to the full poll interval, but that might or might not be acceptable for you.
I can't give you a good tip for a email client lib to use for that, though.
Here is a simple example of sending email trough Google's SMTP server.
I'm embarrased of how I'm unaware of SMTP / POP3 / IMAP protocols,
as much as I thought I know HTTP and TCP/IP it apears that I took email as granted, and never had to write any piece of code that will do other than sending an email via an existing SMTP server.
My task is to write an incomming email channel and I would like to hear what is the basic aproach
What I need is the ability to listen to a specific email address, and capture the body, subject and attachment of that email for further processing.
I understand you want to programatically recieve mail...use subethasmtp (much lighter and easier than james etc, works very well.
If you want your server to receive e-mails, it's an SMTP server that you need.
(You'll also need to make sure that the e-mail address is set up to be sent to that server, via the MX entry in the DNS.)
Note that, depending on how you want to install this service, you might not need to write an SMTP server yourself (or even use a library). Existing SMTP servers are often capable of delegating the processing of an e-mail to external applications.
You could use somelike Postfix and configure it to use pipe for that address, to send the e-mail to process to the program of your choice (including one that you develop yourself). I'm fairly sure Exim, Sendmail and other MTAs have similar features.
With this sort of configuration, your application would usually need to be able to read the e-mail from the standard input (and have the ability to split/process headers and body), but that's usually much simpler that writing an MTA/SMTP server.
If you really want tighter integration with the MTA, perhaps this could be a good starting point (I've never tried it): http://james.apache.org/
An SMTP server is usually how you'd refer to an outbound mail server; it sends mail.
POP and IMAP allow you to connect to a mail server, to read the mail that's already been received.
You need the receiving/server side of SMTP, and you might benefit from reading up on MTA; mail transfer agent.
You might also be interested in reading about SMTP proxies; so, sent mail would go through your server - and could be filtered/listened to, I suppose - and then get sent further to it's actual recipient.
Use the JavaMail API