Questions tagged [email]
The email tag has no usage guidance.
107
questions
0
votes
1answer
45 views
Where to store side effect state in an event sourcing system
I also had a look at How do I deal with side effects in Event Sourcing? but the solution wasn't clear to me.
If I store "EmailSent" event in the event stream, I might issue the external request to ...
-2
votes
1answer
56 views
Do all email clients (Yahoo, Gmail, Outlook, etc) always send emails in multi-mime format and include a plain text version of the body? [closed]
I am trying to design a mail integration to a system but I have to process emails as they come.
One of my decisions is based on whether I can be 100% sure that email client always send a plain text ...
0
votes
1answer
95 views
Architectural principles for creating a large-scale email server that doesn't get blacklisted
I am considering what it takes to implement an email server. Google Cloud basically doesn't allow you to send emails at scale (they block the email ports pretty much), though it sounds like you could ...
3
votes
2answers
157 views
How to keep logs of emails sent by application
We have an ecommerce application which sends out transactional emails to customers for events like order placed, order shipped, order delivered etc. We used to send one bcc of every email to a gmail ...
0
votes
1answer
195 views
What characters to limit when user enters an email?
I have a backend that does not support emoji characters in all of its fields, so I want to block them directly in the frontend application. I'm in the register section, and I want to limit the ...
1
vote
1answer
98 views
Where to store automated transactional email templates
Our website needs to send transactional emails to customers each time an event happens on the site such as:
User registration
Email verification
Password resets
Order confirmations
Despatch ...
1
vote
1answer
223 views
Queuing emails in Laravel when using an api driver such as Mailgun?
In Laravel (for the record I'm using v5.6) there is an option to queue emails for background processing.
I have a scheduled job to send out daily email alerts to users. Currently the job drops the ...
3
votes
2answers
270 views
Are international UTF-8 e-mail addresses a thing or not?
RFC6530 defines the necessary steps for "international e-mail" (i.e., especially for UTF-8 e-mail addresses). Apparently Google adopted the RFC back in 2014 (source). Still, most validators I find on ...
1
vote
1answer
615 views
How to get email from Gmail to a PHP app
I'm building a PHP app which should somehow receive emails that are to be imported into user records. None of the solutions I've come up with will work (listed and explained below). I'm hoping ...
0
votes
1answer
84 views
LDAP with Dovecot
I have a mail server setup with Postfix and Dovecot, and an application server setup with node.js. I have user credentials stored in my application server, and I want to use the same credentials for ...
2
votes
2answers
219 views
Should I fix known bad domains in user emails?
Checking my Sendgrid account I've noticed many drops due to "Known bad domain". Those bad domains often seem to have been caused due to user mistake.
***@gmal.com
***@gmail.com.br
***@hotmal.com
I ...
1
vote
1answer
77 views
Showing confidential to a customer info without having him to create an account: GET or POST approach?
There's a website where a person should pay to get some service/product. After a person has made a reservation/product by paid for it, I want to allow him to track the progress without having to or ...
1
vote
1answer
177 views
Building a scalable Email Delivery system
I want to fix my current Email Delivery system which sends email using a third-party email provider and creates a record for each email sent in RDS. Functionally this is how the system behaves -
A ...
0
votes
1answer
247 views
A way to communicate between 100 clients on low budget
I have a group of 100 clients around the globe, that need to communicate between then self, fast.
Each message that each of the clients sends needs to be broadcasted to everyone. The messages will be ...
0
votes
0answers
38 views
How (should I) to look for email uniquess in a registration system vs mail providers policies?
I'm implementing a registration system where I would care of having a clean DB with only unique email addresses.
uniquenes could be simply obtained by comparing email addresses strings.
But ...
0
votes
1answer
59 views
Publish nightly received e-mails on FTP server
The goal is to publish the attachments of received e-mails as soon as possible on an FTP server. These e-mails are sent at night, manual work is impossible. The mail server these e-mails are received ...
-3
votes
3answers
131 views
Design a system to send email at various times periodically? [closed]
I am working on a feature that will allow the user to configure an email to be sent a time he chooses. Once he has saved this configuration, email will be delivered at his chosen time (or around that ...
2
votes
1answer
84 views
Should we avoid 'legitimate' spoofing of “From” address or just ignore DMARC failure
I am on a team building a SAAS application. Part of the application will send out scheduled reminders to our customer's clients. The project description is asking for the ability for our app to send ...
0
votes
1answer
89 views
Performing multiple actions on each row of table from many databases
I am working on a project that manages employee payrolls using php (no frameworks). This application consists of clients (with their own databases). Each
database consists of the client's employees ...
0
votes
1answer
155 views
Architecture for email service API
I would like to build an application for sending emails. So I chose ASP.NET Core (API) which will be deployed by Docker.
The application will get some request and "do some things" and then sends ...
0
votes
1answer
3k views
What is an email payload?
When we mean e-mail payload, are we talking about the whole message provided after DATA command or just the Body part of the message (without headers like From, Subject, Message-ID etc)?
S: 220 smtp....
1
vote
1answer
117 views
Filtering and forwarding emails received via multiple SMTP servers
I'm working for a company that will be renting smtp server capacity similarly to MySMTP. Our end users use a 3rd party email marketing frontend application configured with the details of our SMTP ...
2
votes
1answer
301 views
Finding duplicate email addresses. How heavily should I normalize them?
I have a big list of email addresses and I want to find out which of those are duplicates.
How to define "duplicate" is exactly what I'm posting about here.
I know from experience that with Gmail, ...
5
votes
2answers
2k views
What is email ingestion and are there modern uses for that technology?
After reading this question Reasons NOT to use email for system integration
I want to ask the opposite question.
What is email ingestion?
When it is OK to use it for process or system integration?
1
vote
3answers
275 views
Reasons NOT to use email for system integration
I do system integration for critical and time sensitive systems. We have two standard ways we can build these system integrations. One is a simple (and cheap) email ingestion tool built into our ...
3
votes
1answer
364 views
Schedule Task prevent duplicate notification
I am creating schedule tasks that run on daily basis monitor system events and send email notification based on some criteria.
For example, if user subscription will expire after one month, task ...
-1
votes
1answer
71 views
How to make an application only accessible to those with a college/university email
I have no idea where to start in all honesty. If I make a phone app, for example, how would I go about only allowing people with a university (college) email address to sign up? Would it be as simple ...
0
votes
1answer
558 views
Send server side file as attachment in a web application
In our web application development project, we need a feature that lets the users to email themselves an attachment (~1MB) which resides on the server.
I was considering two alternatives.
Upon ...
5
votes
3answers
895 views
Hide, obfuscate or otherwise prevent the harvesting of email addresses [closed]
I am developing a public repository webapp for my organization.
It will be public webapp, exposed to the internet. All people and organisational units can be queried and its contact data will be ...
4
votes
1answer
2k views
Is it always the best way to go to queue emails instead of sending them real-time? [duplicate]
If you had to decide between queueing emails and sending them real-time, is it always the best way to go putting them in a queue and sending them one by one instead of instantly as soon as a user ...
0
votes
0answers
45 views
Logging of sent/received emails within a web application
We're finally migrating our client/server system to the cloud and would appreciate help on the handling of email within the webapp. Currently we monitor the inbox/sent items of Outlook.
It seems that ...
-2
votes
1answer
138 views
Error recovering emails in Delphi (POP3) [closed]
I'm new to programming with Delphi.
I have the latest version. I'm trying to display my emails using POP3 but I have a problem.
At one point I was wrong and did a loop with POP3.Retrieve() method ...
0
votes
1answer
100 views
API call to login from a link in email
I am trying to make a something like a shopping cart. I want to add a feature, that if a person adds a product on website but does not purchase the item, i will send him an email with a link. If the ...
-1
votes
1answer
97 views
What's a reasonable limit for email confirmation re-sends? [closed]
I want a secure web app, and allowing infinite email confirmations and re-sends seems insecure. I was thinking 3 but would love an opinion from someone with experience.
Edit
Sending email with ...
1
vote
2answers
2k views
What is the best approach for PHP mail templates
I'm working on a webshop (used to be for just one product, expanding it to multiple products and multiple shops hooked up to one backoffice, can't use PrestaShop because of compatibility).
We send 3 ...
4
votes
3answers
5k views
RESTful Api: Send email with links to client URL
A client can call the following REST api URI to send an enquiry
POST /v1/businesses/{business_name}/enquiries
The enquiry can then be viewed through the following call:
GET /v1/businesses/{...
14
votes
2answers
4k views
Should I keep email addresses as plaintext in database?
It's clear to everyone (I hope) that storing passwords without at least salting/hashing them is a terrible idea.
What about emails? Let's say you keep the subscription email address, if you encrypt ...
-1
votes
1answer
180 views
Send Emails Via APIs or Code?
I am Using SendGrid to Send Emails to my Users.
There are two ways to send emails via SendGrid.
1 - Via APIs
2 - Via Program/Code
I want to know which one is More Secure and efficient way. I am ...
1
vote
2answers
1k views
Why does PHP allow sending mail from any address
I'm sorry if this has been asked but I'm not quite sure how to search for it. I'm having a bit of trouble understanding how mail() works in PHP. The way I see it, using that function, I can send e-...
1
vote
1answer
1k views
The correct manner in implementing an email notification system
I'm looking to build an email notification system using codeigniter. Now the system in question is one of a 2nd hand online store. For example say person A would like a chair. When they search the ...
0
votes
2answers
278 views
What's the etiquette on looking at the other person's email when pair programming?
To me - if you're pair programming - then you don't open your email, or you decide you're cool with the other person looking at it.
I've worked with a person who looks away, and expects you not to ...
1
vote
2answers
568 views
Sending a notification to each participant 3 hours before the meeting starts
Let's assume an application that deals with meetings where some users will participate.
What is an efficient way to achieve this use case:
3 hours before the meeting should start, one reminder mail ...
2
votes
1answer
217 views
Is Singleton enough for a EMailUtil or there is any better implementation? [duplicate]
I am developing an application, where I have to send lots of emails for user account creations, validation, invites etc.
I have implemented a static class EMailUtil which has different methods like
...
0
votes
2answers
96 views
How do I handle a spam server invalidating my tokens?
Our web application sends a one-time use generated token, in the form of an URL, to clients who forget their passwords. This works except for the case where the client is sitting behind another server ...
10
votes
6answers
3k views
How to validate a given domain is owned by the user?
I'm writing a software which will be used mostly by companies.
I then had the idea to give companies a way to register their email domain so that every user which registers with an email of the given ...
-1
votes
1answer
91 views
Sending e-mail from a web application without being filtered out [closed]
For a web application I'm working on right now it's very important that automated e-mails arrive at the recipient. I've set up the mail server on the VPS that the application is going to run on. I've ...
1
vote
2answers
1k views
Sending emails from server side
I need to read some of your opinions. I'm developing a desktop app (.net/winform) to keep data in one place. This is used by several clients and the data is stored in MS SQL Server (client-server arch....
4
votes
1answer
341 views
What is the benefit of offloading email to a transactional mail service?
Why do so many people recommend offloading email to a transactional service such as Mandrill, Postmark or Sendgrid?
Is sending email via smtp really that much slower than sending a request out to ...
3
votes
2answers
2k views
Is displaying an HTML email a security risk?
I am writing a simple webmail where I want (obviously) to display the emails.
I'm wondering if I should take any precaution while displaying HTML emails: is dumping the email content into a <div&...
5
votes
4answers
57k views
Can one determine the creation date of an email account?
Is it possible to determine the creation date of the mail account for the address supplied within the authentication process flow; Or at least determine that the mail account was/was not created the ...
