We are trying to send mail on to Gmail account by using send grid api but Gmail has blocked the email which is sent from send grid. Please check the message given below:
550 5.7.1 [167.89.24.147 12] Our system has detected that this message is likely unsolicited mail. To reduce the amount of spam sent to Gmail, this message has been blocked. Please visit http://support.google.com/mail/bin/answer.py?hl=en&answer=188131 for more information. kw15si11591084pab.218 - gsmtp
We have checked all header parameter suggested by Send Grid and implemented it in our code. At the same moment, it works fine for other domain like AOL, Rediff etc.
Please suggest how we overcome with this problem as we have huge users on Gmail and we will send our emails to all those users as. Also, we have noticed that the email came after some time from Send Grid.
Many thanks in advance.
The recipient mail server analyzed your message and determined that the content of the message is spammy. My recommendation would be to run your formatted message through a third-party service, www.mail-tester.com , to identify ways to improve the reception of the message. It's also possible that your sending IP address, 167.89.24.147 based on the response message you've included, is listed on a black list. You'll want to scan your sending IP on a site like http://multirbl.valli.org/ and, if you see that your IP is listed anywhere, submit a delisting request with the black list.
SendGrid also has a Spam Checker app - Turning on SendGrid's Spam Checker app can help combat this, as you're able to set a predefined filter and get alerted when your content exceeds the filter that you set.
Related
I am trying to send an email from my Firebase Cloud Functions using the SendGrid's mail client for Node.js
I am following their example described as follows:
const sgMail = require('#sendgrid/mail');
sgMail.setApiKey(functions.config().sendgrid.key);
const msg = {
to: 'my_own_mail#gmail.com',
from: 'my_other_own_mail#gmail.com',
subject: 'Sending with Twilio SendGrid is Fun',
text: 'and easy to do anywhere, even with Node.js',
html: '<strong>and easy to do anywhere, even with Node.js</strong>',
};
sgMail.send(msg);
Once the function is fired, everything gets executed successfully. In my function logs I get Status 202 and the actual mail gets delivered but not in the main mailbox but rather in the Spam folder. When I open the message, it simply says:
I don't really understand what is the problem.
NOTE: If I send the message to an Yahoo email it doesn't go in the Spam folder. Same applies if I send it to my business email.
Your problem is not related to cloud functions or the code, there are a few anti-spam rules you need to follow, this gave me a good starting point
Sendgrid does not send your messages to the SPAM folder it all depends on the recipients mail delivery flow spam filters.
Most messages are marked as spam for one of the following reasons
1. Message is not authenticated properly
Validated that your message is authenticated properly with SPF or DKIM
2.Your message originates from an IP that is in a Blacklist (this might be on Sendgrid's)
Try by sending a message to your self and open the message headers , then look for entries like the one below
Received: from xxxxxxxxx.com (xxxxxxx.com [xxx.xx.xxx.xx])
by xxxx.com with SMTPS id ##############
The IP between [] is the sending server IP try to use public blacklist such as spamhaus to see if it is blacklisted and report to Sendrig if you find a match
3.The content of your message has known phishing techniques (accidentally or not)
Check the "Format your mail" section for Gmail senders guidelines as general recommendation
I tried to send an email through sendgrid. I have a custom domain myself#contoso.com. If i try to send an email to user1#gmail.com with the from address as myself#contoso.com,then,the email is delivered to gmail with "via". When i try sending email to myself#contoso.com with the from address being myself#contoso.com the activity says the email is delivered however, in outlook client i have not received the email. What is it that I can try or do?
I have tried whitelisting contoso.com but it did not work
This is not an answer, as it doesn't help work out why the emails that are "Delivered" have not been received, but this is SendGrid's note on why Email messages with the “Delivered” status are not received:
Twilio SendGrid posts the Delivered event after the destination server accepts the message with a 250 OK response. Once an email is accepted by the destination server, we are unable to see what happens to the message. The receiving server could send it to the inbox, queue it for later delivery, put it into the spam folder, etc.
Often times, a recipient domain will initially accept a message for delivery, and then apply additional filtering afterwards. In this situation, we would have posted the Delivered event, but not have any insight into the additional filtering. Any additional Twilio SendGrid events for your email message would be triggered by recipient engagement (i.e. open/click events, unsubscribes, etc.).
Also note that at the time of writing, that answer had 26 downvotes (and zero upvotes) on the SendGrid website, probably indicating that many other users have experienced this problem.
I had several issue solving this problem. The most important part is to set "Sender Authentication" from sendgrid to your domain dns. There is a instruction here. I'm using godaddy, so the link to set dns is https://dcc.godaddy.com/manage//dns .
I am having a problem where i get a bounce whenever i send a mail to my email address xxx#mydomain.com, from xxx#anyotherdomain.com. I tested this with about 10 of my email accounts and none of them work.
However I am able to receive mails from accounts like xxx#hotmail.com or xxx#gmail.com.
I get this bounce :
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es)
failed:
However no error codes. If anyone can help me or point me at the right direction that would be appreciated.
You should see a more detailed error message below what you quoted. But I would check to see if you have an SPF record for either of the two domains and make sure it is set correctly.
Mandrill has inbound email processing, in which you can setup a catch-all address for which incoming e-mail will be posted to a specified URL.
For example, e-mails to *#sub.domain.com could get posted to http://mydomain.com/process.
Is there a service that will work this way but that allows to "re-route" the e-mails? Say if a post to the URL above returns a specific code, say 403, the e-mail will be swallowed, but when a 200 code is returned, the e-mail gets sent to a specific address, without modification, just as if it was originally sent to that address.
I guess I could code a script that would just re-send the e-mail, but I don't want to run into deliverability issues.
I'm not sure I'm explaining this clearly, so here's a specific example:
E-mail to newsletters#sub.domain.com is received by a Mandrill-like service (the receiver)
That service posts the e-mail to http://mydomain.com/process (let's call this the processor)
The processor either:
Returns a 403, in which case nothing else happens
Returns a 200, and a destination address, and then the receiver delivers that e-mail to the new destination
EDIT: I realize I could just use Mandrill to re-send the e-mail, but wouldn't I run into problems given I won't be the original sender? For example, if I receive an e-mail from support#microsoft.com and then I re-send that e-mail to another address, could I be flagged as a spammer or have other issues with deliverability? So this might not be possible at all?
It seems it is indeed impossible to do what I want, otherwise anybody could spam the world with no problems, however, Mandrill just added this feature, which might come in handy:
http://help.mandrill.com/entries/23374656-Can-I-send-emails-on-behalf-of-my-clients-
This is just an experiment, but I'm going to try and resend mails to my own server instead of forwarding to the original receiver, so then an e-mail client can pull the messages from there.
I'm designing a capability to send emails out for my app.
I was wondering once I send out an email, is there anyway to find out whether
the email address exists and is real
the email was received
if not received, what the problem was? (mailbox full, email
address
invalid etc.)
the email was read (probably asking too much
but
would be good)
Do I get any feedback at all?
I'm using the SMTPClient in the .NET framework to do this.
no. You can find out if the target server accepts the address. but you can not find out if the account really exists. even if the server accepts the address it could be bounced later.
no. if you don't get a bounce, you have to assume it was delivered. there is no guarantee. it could have landed in a spam box etc.
if a mail is not received you either get a bounce message (or depending on how you send the message you get the error directly in the smtp transaction while sending it to the target server).
no. you can request a read-receipt or do fancy stuff like embedding links to external tracker images. but all this stuff is usually blocked by default.