I'm generating a bulk mailing each day for users who want to receive the daily deals. I can either send a separate physical email with each user specified on their own unique To header, or I can send one email with all the users on the BCC line.
Obviously if I ever want to create user specific content I will need to customize the emails per user and send them individually, but if I don't want customized email right now, should I just send out the single email with everyone on BCC? Any reason to NOT do that.
Edit: I'm using a third party as my gateway that specializes in delivery with CAN-SPAM compliance, etc.. not trying to do this off my own mail server...
Update: I guess I'm really also looking for some metrics here. Is there a difference in open rates of BCC'ed email vs To field email? What about spam filtering rules that might pre-classify based on the BCC field?
No reason I can think off for NOT doing it. Using BCC is the polite way to send bulk emails.
In this case, it turns out that the correct answer was neither. The gateway provided a custom header API that allowed me to specify all the recipients in a secondary "To" field. The API then handled the blind delivery of the emails, and also did variable substitution for me so I didn't have to transmit all the duplicate content multiple times. The API then handled doing "best practices delivery of the email".
Related
I'm using AWS SES to send emails to customers. I want to send an initial email to confirm an action they've made on my website, and then send subsequent emails to that same email address to notify of any subsequent activity on that initial action.
Different email clients appear to implement this behaviour differently, and I've read about the thread-index header here, but that doesn't cover all clients.
Is there a standard way to mark that an email belongs to the thread of a previously sent email?
Thanks
When adding the References Header to Emails, you can add message-ids of previously sent emails in order to create email threads.
Of course it's again a topic of the client to fulfill this feature, but it should be supported by major email clients.
Heres an old blogpost about that. (considering that email is also old, it should be fine ;) )
https://wesmorgan.blogspot.com/2012/07/understanding-email-headers-part-ii.html
Like many web apps, we use Postmark to send all notifications for server side events. Many of our events are grouped and related by something simple and logical (think multiple replies to the same issue, like in GitHub).
Right now, every email sent for these related events is it's own email thread. My question is: how do I send these emails so that related ones get pushed into the same thread?
I'm not sure if this is something at the Postmark level (like include a previous message ID) or if this is something I do with SMTP (like I should format my subject better and inline previous responses), so that's why I'm seeking guidance. Also, every Google search about: "Postmark email threads" returns concerns over the thread safety of the Ruby Gem.
For more information, the app is written in PHP and right now we are znarkus/postmark-php for sending emails and jjaffeux/postmark-inbound-php for parsing inbound ones. However, I am more than willing to add any extra packages if they help me in my quest.
Thanks in advance!
You can add a few SMTP headers with the original Message-ID that most clients use to link together replies. If the original email had a Message-ID header of <123#mail.example.com> the new email you send out should keep the subject line the same and add headers of:
In-Reply-To: <123#mail.example.com>
References: <123#mail.example.com>
And that should inform clients that the two emails should be threaded.
Edit:
The value for these headers should be the SMTP Message-ID header, which is slightly confusing because it is a separate concept from the Postmark MessageID value, which is just a UUID for the email.
The SMTP Message-ID header is always in the form an email address, because that's how it's supposed to be formed, but doesn't have to be related to the from address.
What is the best way of tracking responses for email campaigns? I was thinking on adding something to the reply-to field of the email (for example luqita+campaigns#stackoverflow.com), but I'm not sure if there is something more neat that could avoid this?
I thought about headers too, but it's important to note that the address luqita#stackoverflow.com would send many different campaigns, and the 'in-reply-to' header info would not be useful then to differentiate (while using luqita+campaign1 or luqita+campaign2 could)
What can I do?
So you want to be able to execute some logic when someone replies to an email you have sent through SendGrid? If you have access to change the MX record of the domain of the email address at which you want to receive the replies, you could use SG's Parse API to get a POST request to a script whenever email is receive at the address.
I think you would indeed have to set a magic reply-to address for each campaign. This seems like a perfectly fine solution; it's also how SG itself tracks bounces - it sets the return-path to something like bounces+{attempted-recipient-email}#sendgrid.com. Then examine the 'to' parameter of the POST notification you receive to know which campaign the reply is associated with.
When you say "tracking responses", do you mean that you expect users will reply to the Email, or do you mean that they'll click on a link in the Email and interact with a web site?
SendGrid obviously offers click tracking and open tracking, and you can set up to 10 different categories for tracking campaign stats and see delivery/bounces/opens/clicks/etc based on those categories. They also have a Google Analytics plugin that can feed back some analytics data to Google. And as #LinusR mentioned in his answer, the SendGrid Parse API can be set up in a way that reply Emails can get parsed and posted back to your site.
If the user will be interacting with your web site, you can use the "unique args" setup at SendGrid to set a unique string/hash to append to any URLs that can help identify a particular user, campaign, or whatever else you want to track.
Given multi-tenant application, How are vendors implementing email notifications from an email account setup and programming perspective:
Sending emails could come from a generic account: eg notifications#VendorName.com or noreply#VendorName.com, this seems reasonable considering reply addresses and lilnks can be contained within the email contents.
Receiving Emails: How would an application receive email, for instance; to generate support tickets or assign comments in an email to a project/task. I have seen ID's within the subject and some reply to addresses containing the account name eg: notifications#AccountName.VendorName.com
I realise one can programatically connect to a pop3 server and receive emails and look for the IDs with the subject, but is there a way of setting up and receiving email to a single pop3 account from multiple sub-host name email addresses (not sure on terminology there) eg: noreply#AccountName1.VendorName.com or noreply#AccountName2.VendorName.com and check the Account Name from the address? (similar to checking subdomains on a URL)
Any practices, experience, comments or sughestions?
(not sure its relevant, but using C# asp.net-mvc and services etc)
For sending notification emails, we have a notification send to address associated with each account and simply send from our domain to that address. Our from address is monitored and replies end up in the CSR work queue.
For inbound emails, we use FogBugz (from the makers of Stack Overflow) for case tracking. That accepts new cases via email (e.g. cases#mycompany.com). Tickets are auto-created from the email. My only complaint there is that the customer needs to check an obscure link for case updates (no "my cases" web portal, but maybe that will come out in an upcoming version of FogBugz).
We have a custom field in FogBugz to indicate the customer the ticket is from. We could theoretically write a plugin to FogBugz that auto-assigns that using the senders domain, but I guess the CSR's haven't complained loudly enough yet :-)
We (at muHive) are an inbound email/social conversations management product. If you are looking at a handling inbound email or social media conversations from customers, we have an impressive toolset.
For our own outbound needs, the simplest way is to use an Email sending API. Don't bother with SMTP sending by yourself. We use Amazon SES and have also tried Sendgrid which gave us additional benefits like delivery status and email parsing.
There are two ways in which you can handle multiple accounts to a catch all email address. If your target system can differentiate between different customers and assign tasks to the correct representatives based on either the content/sender, ask all your customers to send an email to support#company.com.
As you rightly said, you could also create *accountName_support#company.com* email addresses and use different accounts on whatever CRM/Support solution use to manage these emails.
Another approach is to have your customers send you an email to support#company.com and you use a rule based system (like muHive) to forward these mails to the appropriate account executives based on the customer/account who sent the mail.
My application server needs to notify users about some events via email. Usually there will be between 10-100 users to whom the notifications should be sent, but there may be a few cases where there may be a bit more (I don't think it will ever be more than 1000).
What is the best practice in such cases? Should I send a single email per user or one email with all users as recipients or group users and send one email for each group (for example 1 email for 10 users)? If it makes any difference I may add that I am using System.Net.Mail to send emails.
Thanks in advance for your suggestions
Lukasz Glaz
You should send one e-mail per user.
The alternatives either involve putting e-mails in BCC (which will increase your chances of having your mails flagged as spam), or revealing your user A's e-mail address to user B, where user A and user B are in the same "group".
You need to check with your smtp server manager - to avoid being blocked.
if you own the smtp server, than this is not a problem.
I think the best way is to send them in bulks of 50 recipients per message (it will be a little faster than one by one).
I wouldn't definetly put all recipients into a To: field. Even from one place. It's just not a good practice to show other's addresses. And it generates a problem when someone hits "Reply All" and suddenly mails all others with his crap :)
If you own the smtp server, and your application server -> smtp server connection isn't slow, I would just send every mail individually, with each single recipient in To: field. It just looks much less spam'ish then getting a mail with empty (or some bogus) To: field and being in BCC only.
Other advantage is the person recieving your mail will know what email address is used. I got plenty of them, use different ones in different places, and it helps to be able to see which one I used on which site (sometimes I need to use this address for password reset / login, and I forgot, and if all mails had me in BCC, I'm screwed). This is from your user's perspective.