I am using Peter Huber's POP3 client to connect to gmail and download messages.
The inboxes being accessed are transactional inboxes used only for code-access. That is, a message comes in with a order file attached, code will process it and then delete the message. One stipulation of the code though was a DEBUG flag, which if set would prevent the code from deleting the message so that you can run the program again later without the debug flag and reprocess the message. So, in my code I have
If Not Arguments.Debug Then pop.DeleteEmail(eid)
This works fine. Problem is, even when not deleting the message, running the program a second time will not re-retrieve the message, even though if I login to gmail and look at the inbox, it is still there. The only way I can get the program to see the message again is to forward the message back to the same inbox. But in Peter's code I do not see anywhere where he is keeping track of seen messages between sessions.
Is this something that is done on gmail's end? Refusing to deliver a message to the same client a second time? If so, is there any way I can change my gmail account so that it will always show all messages in the inbox to a client when retrieving the list of messages, even ones already "seen"? I don't see anything in the gmail settings screen.
UPDATE: I tried adding a method to send a RSET command to the server, as per this comment on the codeproject page. I then call my new Reset() method after retrieving my messages but before disconnecting, ... but I still have the same problem.
Okay... found a "sort of" answer after reading through pages of the comments on the codeproject project.
According to this comment, the RSET command does not actually do anything when you are dealing with gmail's servers.
The "answer" is to prepend your username with the string "recent:", so instead of logging in with [myaccount#gmail.com] you log in with [recent:myaccount#gmail.com]. Rather hackish, ... but it works.
Related
We are sending lots and lots of FCM Messages to our millions of users. As the message is triggered by an external event (Kick off in a football match) we sent many messages at the same time.
Sometimes the sending of an FCM message fails and we get an error message like this:
<H1>302 Moved</H1> The document has moved
<A HREF="https://fcm.googleapis.com/batch?
google_abuse=GOOGLE_ABUSE_EXEMPTION%3DID%....3B+expires%3DTue,+22-Nov-
2022+19:04:17+GMT">here</A>. </BODY></HTML>
(I removed some text for privacy reasons.)
For sending the messages we use
implementation 'com.google.firebase:firebase-admin:9.1.0'
We got thousands of error messages like this in one minute. In the next minute everthing worked fine again.
I have search the internet for information about it. But i couldn't find any abuse rules for FCM. Does anybody has information about this kind of error?
firebaser here
At first glance, your project may be getting throttled, but it may also be another problem in the API calls or the FCM backend. It’ll be challenging to pinpoint or even narrow down what is the specific cause of the error on a public forum without going into project-specific details. I would recommend reaching out to Firebase support as they can offer personalized help. Please provide the latest request and response (with timestamp) you have so they can check what happened to the message delivery.
Edit: I am just going to use an eventlistener. I would delete the post but maybe somebody will find a non eventlistener way to save a sent mailitem before it is received in the sent item inbox.
Issue: Outlook won't receive VBA sent emails until macro completes. If I use wait, sleep, while loops or anything else, the email will not be received. I can't use a Sent Items event listener because I only want specific emails saved to the folder, not all. I individually know how to save from sent items, I know how to send messages. The issue is the delay between sending the email with VBA and it appearing in my Sent Items box. If I saveas before waiting, the email that is saved is the previous email, but if you try to wait, the sent items folder never updates. Any ideas or simple solutions. I might just be dumb.
I have read every forum but haven't found a solution, I had it running at another company but no longer remember how. I use a macro to send very specific emails and do lots of other tasks. I would then like to grab the email I just sent and save it to a folder using vba. The issue is receiving the email in my "Sent Items" folder is delayed. If I try to capture it or wait to receive it, my code never finishes. All solutions I see in the forums are a Sent Item listener / Inbox event listeners, but I don't need that, I know which emails to trigger it on.
One way or another, you'd need to wait for some event to fire, be that Items.ItemAdd on the Sent Items folder, or SyncObject.SyncEnd on the SyncObject - message submission is asynchronous, so no amount of sleep or while loops would help you. You cannot just stop your VBA script and resume it when the message is actually sent since your code is running on the main Outlook thread - if your script pauses, so does Outlook.
You can try using the NameSpace.SendAndReceive method which initiates immediate delivery of all undelivered messages submitted in the current session, and immediate receipt of mail for all accounts in the current profile. Note, calling the SendAndReceive method is asynchronous. SendAndReceive provides the programmatic equivalent to the Send/Receive All command that is available when you click Tools and then Send/Receive.
If you don't need to synchronize all objects, you can use the SyncObjects collection object to select specific objects. For more information, see NameSpace.SyncObjects.
In your VBA code you may also consider using the DoEvents function which yields execution so that the operating system can process other events. DoEvents passes control to the operating system. Control is returned after the operating system has finished processing the events in its queue and all keys in the SendKeys queue have been sent (if any).
DoEvents is most useful for simple things like allowing a user to cancel a process after it has started, for example a search for a file.
Solution, not the solution or used in the past but I settled.
Basically just the event listener solution that everyone in all the forums suggest. I created a separate folder in my Sent Items and use myNameSpace.GetDefaultFolder to set that folder for the VBA sent items.. I send the emails only to that folder and I added the listener to only that folder. This allows me to separate the Sent items and this specific VBA sent emails and then to save them automatically. I am still looking for a way to save the sent Mail Item before the Sent Item Inbox shows it, but I have given up at this point. Thanks for everyone's help. If I find the better answer, I will try to post it along with the code.
I'm new to NServiceBus, so maybe I'm asking something pretty silly here, but is there a way to make NServiceBus not stop sending any messages that are sent in response to a message whose handler fails?
Let me explain with a simple example.
Suppose I have an OrderPaidEvent that has a handler that does the following:
Look for the customer
Start a DB transaction
Update the customer to a good customer
Send an CustomerUpgradedToGoodCustomerEvent message
Commit the DB transaction
Fairly straightforward, all is well in the world. Now a few months later someone else figures that an email would be nice when an order is paid and thus adds another handler to the OrderPaidEvent to send an email.
Unfortunately, now whenever the mailserver has an issue, this second handler will fail with an error which will however prevent the original CustomerUpgradedToGoodCustomerEvent message from being sent (step 4). But because the DB transaction was already committed (step 5) the customer has already been upgraded to a good customer in the database.
This means that even if the OrderPaidEvent handler is retried the customer no longer changes and thus the CustomerUpgradedToGoodCustomerEvent message is never sent. Worse yet, this is all because of a change to the code that has nothing to do with the original message handler and will thus be difficult to detect.
This seems like a massive flaw and since I'm new to this I'm certain there's something I'm doing wrong, but I can't seem to figure out what it is.
Any help from you fine people would be great.
Thanks in advance.
How about breaking down your procedural code into separate handlers?
Thereafter each logical operation will either be done or will not be done based on successful completion of each granular task.
If you add a Saga to the mix then you can make business decisions based on the completed steps in your Saga.
Also maybe read more about transactions and NServiceBus here
First of all I would send out the CustomerUpgradedToGoodCustomerEvent after the commit. At that point you are sure that the event actually took place.
And in response to your question: You could handle the email in some 'SendEmail' command that is raised after the db commit and before the event is published. If that command fails it will not hurt the handling of the OrderPaid event. When mail is up again, the command can be retried and handled normally.
I wanted to write a plugin in OpenFire to inspect incoming messages between users and possibly stop this message from ongoing to the target recipient.
I can write a plugin that implement PacketInterceptor, but is there an api that supports blocking this packet from being sent or possibly modifying the body.
The rational for this is possibly offensive or illegal content. The times we live in :(
I found a packet filter created to do exactly this.
It can be found at https://www.igniterealtime.org/projects/openfire/plugins/packetfilter/readme.html
I've got a puzzling qmail situation (at least to me, but I am not a qmail expert, this is a work-related issue that I'm looking at by default...)
There are about a dozen emails sent to a particular address that have been in the qmail queue on our mailserver for 2 days. In the logs I see each delivery attempt ends with
delivery NNNN: deferral: Connected_to_XXX.XXX.X.XX_but_connection_died._Possible_duplicate!_(#4.4.2)/
All this time, literally thousands of other emails to the exact same address are being sent successfully. There's nothing I can see about the dozen failed messages that is different, although that is the only logical explanation I can think of.
The destination host (XXX.XXX.X.XX) is a machine on our own internal network.
Any suggestions on what I could check? Any way to get additional details on what happened to cause 'connection died'? E.g., perhaps the email server at the destination rejected the messages due to some particular content?
Any suggestions will be much appreciated.
it is possible that the mail is looping.
If the mail header contains "Delivered To:" line then qmail-local usually gives a deferral.
Also check the destination server for any logs, if multiple copies of same mail are been hit there for any random reasons.