12,015 questions
0
votes
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32
views
What cause this Airflow EmailOperator Error?
I am using Airflow 3.x for a personal task and faced this error
Failure caused by [SSL: WRONG_VERSION_NUMBER] wrong version number (_ssl.c:1010) source=task.stdout
What I want to do is send an email ...
- 1
0
votes
0
answers
51
views
Trying to configure SMTP OAuth for email but getting "535 5.7.3 Authentication unsuccessful" when trying to use "authorization_code" as grant type
I created a registered app in Azure and getting the access token issued to me via Postman.
When I receive a token from Azure with "client credentials" as the grant type, the Python script ...
1
vote
0
answers
63
views
Facing issue with SMTP gmail while sending mail using jakarta email throwing jakarta.mail.MessagingException: Could not convert socket to tls
When sending mail using Jakarta email throwing below exception
Using these dependencies
jakarta.activation-2.0.1.jar
jakarta.mail-2.0.2
jakarta.mail.MessagingException: Could not convert socket to ...
- 1
1
vote
1
answer
128
views
PHPMailer SMTP Error: Cannot assign requested address (99)
I'm trying to send an email using PHPMailer, but I'm getting the following error:
SMTP Error: Could not connect to SMTP host. Failed to connect to server SMTP server error: Failed to connect to server ...
0
votes
1
answer
92
views
CodeIgniter email function does not work on Prohoster SMTP
My website was developed in PHP using the CodeIgniter framework. On the development server, everything worked perfectly, but after migrating the site to Prohoster, the email sending feature stopped ...
- 1
0
votes
0
answers
25
views
Azure Communication Service: SMTP-gebruiker koppelen aan App Registration lukt niet (Unknown / Not applicable)
Ik probeer via Azure Communication Services (ACS) e-mails te verzenden vanuit een Laravel-applicatie via SMTP, maar ik loop tegen het volgende probleem aan:
Huidige situatie
Resource group bevat:
...
- 1
0
votes
1
answer
139
views
535, b'5.7.139 Authentication unsuccessful, basic authentication is disabled
I have a website that uses an email contact form. Recently been told it does not work. When I recreated the error in development I got the error
535, b'5.7.139 Authentication unsuccessful, basic ...
- 65
1
vote
1
answer
87
views
Django send_mail() / EmailMessage with Gmail SMTP has 4-minute delay for new email recipients
I’m facing a consistent email delivery delay when using Django’s built-in send_mail() or EmailMessage functions with Gmail SMTP.
🔧Setup:
Backend: Django (tested with both send_mail() and ...
1
vote
0
answers
93
views
I can't send email from .NET application using Google SMTP client, application passwords
I have Google workspace, created for my mail application passwords and used the code as password in my .NET application. This worked for me in test application without Google workspace, from private ...
- 63
0
votes
1
answer
92
views
Cannot communicate to SMTP server with socket and proxy due to timeout error [closed]
Here's my code for simple proxy validation:
import smtplib, socks
socks.set_default_proxy(socks.PROXY_TYPE_SOCKS5,
'*.*.*.*',
<PORT>,
...
- 9
0
votes
0
answers
66
views
MailKit SMTP connection lifetime and authenticate with OAuth tokens
We are migrating from System.Net.Mail to MailKit. If we need to send emails every 30 seconds (or may be more frequently) using SMTPClient (connecting to Microsoft Exchange online), is it advisable to ...
1
vote
0
answers
119
views
How to send email via Outlook SMTP using OAuth2 in Rust (no GUI)? Getting `client_assertion` or `client_secret` error
I’m trying to implement a command-line tool in Rust to send email via Outlook's SMTP using OAuth2 Device Code Flow (in a non-GUI environment). I use the oauth2 and lettre crates to authenticate and ...
- 648
0
votes
0
answers
43
views
Mailkit for SMTP office365 results in 535: 5.7.139 "SmtpClientAuthentication is disabled for the Tenant"
As our software has to support office365 I'm trying the mailkit example to connect to our office365 mailboxes.
However, by using OAuth2, it still keeps ending up in a "SmtpClientAuthentication is ...
0
votes
1
answer
114
views
WordPress in Azure Container App Not Sending Emails Despite Correct SMTP Config
I’ve migrated a WordPress site to an Azure Container App running inside a Virtual Network (VNet). The site is accessible via a custom domain, and I’ve configured the container app ingress as follows:
&...
- 53
0
votes
0
answers
122
views
When to use Transport.send() vs. sendMessage()
Jakarta Mail provides two main ways to send email messages:
Transport.send(Message msg)
This static method uses the Session associated with the message, opens a connection to the SMTP server, sends ...
- 25
0
votes
1
answer
279
views
Azure Communication Service OutForDelivery Status Problem
I have Azure Communication Services setup to send SMTP email. I am sending the emails from a dotnet client and that appears to work, but I never get the email. In the ACS logs, I see the Delivery ...
- 4,375
-2
votes
2
answers
116
views
Send EMAIL from FORM submit - Do I need to use a SMTP server [duplicate]
I have an index page. I have a link in the index page that opens up a modal, in this modal I have a form. I'm trying to send the completed form as as an email but nothing is working.
I've tried adding ...
-1
votes
1
answer
362
views
Unable to send mail via PHPMailer [SMTP->Error: Password not accepted from server: 535-5.7.8] [duplicate]
I've a PHP page that sends email upon submission. It was working fine but 2 days ago, it threw this message:
SMTP Error: Could not authenticate. Mailer Error: SMTP Error: Could
not authenticate.
My ...
- 33
1
vote
0
answers
56
views
SMTP adds redundant symbols to my email message
I have a python smtp sender, and for testing I send 245k symbols message with headers by using smtp
msg = MIMEMultipart()
msg['From'] = from_addr
msg['To'] = to_addr
msg['Subject'] = ...
- 149
3
votes
0
answers
47
views
Docker, PHP and stream_socket_client: connection timeout
I built a PHP application to establish a TCP socket connection to a mail server (SMTP server) on port 25, using a proxy. Here the main part:
$context = [
"http" => [
"...
- 169
-1
votes
1
answer
118
views
Issues with email-AWS Lightsail
I having issues with the email deliverability. Recently migrated my website and emails from a shred environment to AWS lightsail instance. And configured the DNS using the Route53 service of AWS. I ...
0
votes
1
answer
51
views
dynamically finding SMTP Server using Email Address
I am trying to make a Python function to find SMTP host and port of an Email address
import dns.resolver
def get_smtp_host(email):
try:
# Extract the domain from the email address
...
0
votes
0
answers
60
views
Ruby SMTP Script - no mail delivery failed message
I have a simple script to send out email messages. The script works as it should but when the mail adresse doesnt exsits I dont get a failure message from my smtp server. If I send the same message ...
0
votes
1
answer
318
views
MailKit SMTP client using StartTLS with self-signed cert
I am using mailKit 4.10.0 to make a SMTPClient. This client will call a custom SMTPServer using StartTls. The SMTPServer is using a self-signed certificate.
Here is the code:
using (var client = new ...
- 4,375
0
votes
1
answer
58
views
Unable to programmatically update WooCommerce "Sent From" address
I am attempting to programmatically update the "sent from" address for a particular WooCommerce email. Specifically the customer_new_account email. I am aware of the ...
- 317