mailer | Dead-simple mailer micro-service for static websites

We have PHP web application that sends SMTP emails via authenticated smtp.office365.com. This has been working for at least a couple of years.

We are using PHP Mailer 5.2. We are forcing the crypto_method to STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT.

Here's the weird thing. About 75% of the time it works fine. The rest of the time it reports SMTP ERROR: Password command failed: 421 4.7.66 TLS 1.0 and 1.1 are not supported. Please upgrade/update your client to support TLS 1.2.

Registered Stream Socket Transports is tcp, udp, unix, udg, ssl, sslv3, tls, tlsv1.0, tlsv1.1, tlsv1.2

How is it even possible that it works most of the time. If it were truly a TLS issue I'd expect it to fail 100% of the time.

I am trying to send email using sidekiq but it's not working. Here is how i setup sidekiq with ActiveJob

Gemfile

I'm trying to install devise in the rails version I get the error of the latest version of devise

I have tried with other devise versions but it is update it to the latest,

this is the error:

As stated in the Symfony Docs it is possible, to add a failover configuration for mail servers:

Symfony's mailer supports high availability via a technique called "failover" to ensure that emails are sent even if one mailer server fails.

A failover transport is configured with two or more transports and the failover keyword:

MAILER_DSN="failover(postmark+api://ID@default sendgrid+smtp://KEY@default)"

The failover-transport starts using the first transport and if it fails, it will retry the same delivery with the next transports until one of them succeeds (or until all of them fail).

Is it possible to use and configure this feature in TYPO3? If so, how?

Can other configurations like TLS Peer Verification (Symfony Docs) of the Symfony mailer be configured in TYPO3?

By default, SMTP transports perform TLS peer verification. This behavior is configurable with the verify_peer option. Although it's not recommended to disable this verification for security reasons, it can be useful while developing the application or when using a self-signed certificate:

$dsn = 'smtp://user:pass@smtp.example.com?verify_peer=0';

I am currently struggeling trying to use Postmark with the Symfony5 Mailer Bundle. Although the documentation seems to be clear, i am unable to send any emails.

My first point of confusion is the suggested DSN format for Postmark:

postmark+smtp://ID@default

It seems unclear what ID should be used, as Postmark, for SMTP, provides Username and Password, as well as an Acces Key and Secret Key (SMTP Token). An ID, as requested, is not provided.

Does anyone know what configurations should be used here?

Thank you in advance!

We have a Jenkins setup on Google Kubernetes Engine with dynamic kubernetes pods serving as build agents. I want to integrate Pylint as a build step. Python version running on kubernetes pod is 2.7.16. Any idea how to install Pylint and integrate it into Jenkins build?

Edit:

Jenkins is running on a Google Kubernetes Engine cluster.

Kubernetes Cloud is configured in Jenkins as given below:

List of plugins installed are as follows:

I am trying to send mail using perl through server office 365

The operation succeed 8 times out of 10 (i.e. randomly fail in 20% of cases).

I am running a code that apparently requires NVIDIA apex (I initially didn't know and installed the wrong apex). I am unsure how to fix the final error:

I am working on a project that doesn't use any framework and I would like to use Symfony Mailer component to handle sending emails.

The installation part (composer require) was well handled and everything is included in my code without any error. However, I still have a problem : the documentation of the component seems to be written only for using it with the symfony framework. Indeed, it is refering to autoloaded config files that o bviously don't exist in my app.

This implementation seems to be very tricky and I was wondering if any of you guys already faced the same problem and what solution you came up with?