Using own SMTP server with GSuite

We’ve been having problems recently with our email ending up in junk and after doing some testing it turns out that (some of) the GSuite IPs have been blacklisted, which explains the partial deliverability.

E-mail is very integral to our business so we’d happily pay to have a dedicated IP but Google doesn’t give that option.

Is there a way to force outgoing email to go through a custom SMTP that we’ll setup with another provider that can offer dedicated IPs?

MailChannels SMTP Relay Alert: _forwarded-from

Anyone else received these emails from MailChannels?

Got quite a lot of them since yesterday as if MC added new feature or notification f… | Read the rest of https://www.webhostingtalk.com/showthread.php?t=1838099&goto=newpost

gmail – G-Mail SMTP Service accounts

I’m setting up a google workspace for my company as we want to fully migrate our mail system to google. Part of this is obviously creating al mail boxes, aliases, etc. Now we currently have some mail addresses which have a login but don’t need any mailbox, e.g. jenkins@my-company.com to allow our jenkins to send mails.

Now I know that I can set any “sender” email on jenkins site to represent that email address, even if their is no user set up for this mail address, but I don’t want to use credentials of any employee to authenticate towards googles SMTP server.

So is there a possibility to create credentials of non-human entities on google workspace that allow sending mails via SMTP?

postfix – SMTP Untrusted TLS connection still sending emails

When sending mail from my client through a mail server that is then using AWS SES as a mail relay I’m seeing this in the postfix log as each message moves through:

smtp: Untrusted TLS connection established to email-smtp.us-west-1.amazonaws.com(13.57.144.53):587: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)
smtp: D34E420866249C: to=<recipient@domain.tld>, relay=email-smtp.us-west-1.amazonaws.com(13.57.144.53):587, delay=0.81, delays=0/0.11/0.52/0.17, dsn=2.0.0, status=sent (250 Ok 0111017774953167-f6df400f-aa87-43ab-8ca6-6c5534c50e17-000000)

If the connection is “untrusted” but SES requires TLS (which is set up, though perhaps not correctly) for security why are messages still sent on.

Things are working… I’m just surprised that they are.

I followed AWS’s SES with Postfix docs. Main difference with my setup is I couldn’t use smtp_tls_security_level = encrypt, as suggested, because that was blocking inbound smtpd transactions. Setting it back to smtp_tls_security_level = may gets the mail through but logs say smtp is “untrusted” even though connection seems to succeed?!? Not sure if these are related but that’s all I got.

Anything I can fix/improve?

email – How do you instruct Postfix to use SMTP over a different port?

I’m operating a Postfix server, and my local network has port 25 blocked. I’ve tried everything I can to in order to get port 25 unblocked – no dice.

Unlike this I don’t want to proxy my data. (Haven’t found a good way to do it since I don’t have external servers) I’d rather just send stuff over port 587 instead of 25 – since 587 isn’t blocked for some reason.

How exactly do I go about setting my postfix config to send emails on port 587? I’m fairly sure the hosts I’ll be sending to support port 587. An alternative could be proxying if it still sends from the email account on my server, is free, and doesn’t use OAuth2 (I’m specifically setting this up because of misconfiguration of platforms like Outlook, and Gmail demanding OAuth2).

I’d like to note that I’m using Ubuntu 20.04 LTS as my server base – so CentOS/RHEL tricks won’t work.

smtp – Downloading IMAP/POP3 emails on a remote server to a local mail server

I need to setup a local server that will download email (IMAP or POP3) from remoteserver e.g gmail or webmail, to a local server. Such that users can have structured access (either via mail client or web clients like Roundcube) to that download email content on the local server.
The aim is to:

  1. Have a backup server for the remote email server
  2. Take some email permanently off the remote server
  3. Allow some users to access emails only on the local server.
  • Pls note that the removeserver is currently a shared hosting server.
  • The localserver doesn’t have dedicated static IP, but have access internet.
  1. All users should also be able to use SMTP as outgoing email.

Your advise is much appreciated in advance.

Thank you

php – Failed to authenticate on SMTP server with username “apikey” using 2 possible authenticators

Tengo un problema con el envío de correo con laravel 8 y sendgrid, al envíar el correo me muestra lo siguiente:

Failed to authenticate on SMTP server with username "usuario@gmail.com" using 2 possible authenticators. Authenticator LOGIN returned Expected response code 250 but got an empty response. Authenticator PLAIN returned Expected response code 250 but got an empty response

mi archivo .env tiene la siguiente configuración

MAIL_MAILER=smtp
MAIL_HOST=smtp.sendgrid.net
MAIL_PORT=587
MAIL_USERNAME=usuario@gmail.com
MAIL_PASSWORD=SG.xxxxxxxxxxxxx.xxxx
MAIL_ENCRYPTION=tls
MAIL_FROM_ADDRESS=usuario2@anpeseweb.com
MAIL_FROM_NAME="${APP_NAME}"

Donde usuario@gmail.com es mi usuario de la cuenta de sendgrid y SG.xxxxxxxxxxxxx.xxxx es la API KEY generada por Sendgrid

Probe el envío de correo desde mi servidor con curl

curl --request POST 
--url https://api.sendgrid.com/v3/mail/send 
--header 'Authorization: Bearer SG.xxxxxxxxxxxxx.xxxx' 
--header 'Content-Type: application/json' 
--data '{"personalizations": [{"to": [{"email": "destinatario@gmail.com"}]}],"from": {"email": "usuario2@anpeseweb.com"},"subject": "Hello, World!","content": [{"type": "text/plain", "value": "Heya!"}]}'

Y el correo se envío sin problema

que estoy haciendo mal?

Setup private smtp server to keep my server secure

Hi all,

I need your help with my smtp server. I want to setup private smtp where no one will be able to use it but only my PHP script to … | Read the rest of https://www.webhostingtalk.com/showthread.php?t=1835739&goto=newpost

magento2 – Magento 2 smtp could not open socket in Aws Setup For M2

My Site is on aws instant and I am used gmail smtp for sending mail from that but I have one sending mail error and try to solve it but not get any solution

enter image description here

This kind of error I find when I send mail throw gmail smtp in my aws setup magento2.

Could not open socket: stream_socket_client():
php_network_getaddresses: getaddrinfo failed: Temporary failure in
name resolution

I check my php info file in that open ssl was all ready enable

enter image description here

And I also try to do some code in abstract.php file

enter image description here

any one can help me how can i solve this thank you

adminhtml – Magento 2 smtp could not open socket in Aws Setup For Magento2

My Site is on aws instant and i am used gamil smtp for sending mail from that but i have one sending mail error and try to solve it but not get any solution

enter image description here

This kind of error i find when i send mail throw gmail smtp in my aws setup magento2.

Could not open socket: stream_socket_client():
php_network_getaddresses: getaddrinfo failed: Temporary failure in
name resolution

I check my php info file in that open ssl was all redy enable

enter image description here

And i also try some do code in abstract.php file

enter image description here