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Software Engineering

Questions tagged [email]

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105 questions
info Newest Frequent Votes Active Unanswered
1
vote
1answer
75 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
131 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
187 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
64 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
128 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
260 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
296 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
62 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
217 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
76 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 ...
0
votes
1answer
89 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
246 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
37 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
50 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
120 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 ...
1
vote
1answer
79 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
82 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
134 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
2k 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
113 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
257 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, ...
6
votes
2answers
1k 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
264 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
284 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
502 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
884 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
1k 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
42 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
84 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/{...
12
votes
2answers
3k 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
179 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
277 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
508 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
213 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
95 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
314 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&...
4
votes
3answers
53k 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 ...
12
votes
6answers
2k views

Why do most sites require email activation [closed]

Most popular applications nowadays require account activation by email. I've never done it with apps that I've developed so am I missing some crucial security feature? By email activation I mean when ...
0
votes
1answer
558 views

How can I capture an incoming email with ASP.net-mvc?

I would like to write a web system that can capture and parse incoming emails, traditionally the web system I write are asp.net-mvc, running in a cloud hosted environment like AppHarbour or Azure. ...

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