Sending email to @gmail.com with Mailer - Message-ID header

Wappler General Need Help
1

With the Mailer component I created a form that allows sending emails from a web page
The user only has to insert in a form the sender mail, recipient mail, subject and text of the message.
The message is sent to the recipient
Everything works fine, but not when the recipient is a *@gmail.com
In that case I came back with an error:

“host gmail-smtp-in.l.google.com[173.194.69.26] said: 550-5.7.1 [5.134.127.138] Messages missing a valid Message-ID header are not 550-5.7.1 accepted. Please visit 550-5.7.1 https://support.google.com/mail/?p=RfcMessageNonCompliant and review 550 5.7.1 RFC 5322 specifications for more information. cf8-20020a170906b2c800b00a18a4f5f158si2550681ejb.270 - gsmtp (in reply to end of DATA command)”

Note that my SMTP server is an external server - is a paid server - (smtp.240.ext.armada.it). I use it in Plesk, to send email and it works normally with @gmail.com addresses. therefore the problem must be necessarily faced in the sending method from wappler

How can I change the sending to make it work?
Thanks

2

I have has issues with Google lately.
Check you have spf and dmarc records on the sender domain’s dns records as if not , Google will reject all mail.
Could possibly bet the cause

3

@Hyperbytes I was about to say the same. I had the same experience with mails being refused by Google

4

Google changed their policy a couple of months back. Most hosts implemented a fix for their Users by adding the necessary records to DNS.

https://support.google.com/mail/answer/81126

1 Like
5

Thank you all.
I understand the issue of spf and dmarc on sender domain, I will check.
But why doesn’t it work even if I use a sender @gmail.com and a recipient @gmail.com ?
Gmail doesn’t authorize itself?

For a test with a sender @gmail.com I’ve tried also modify my Mailer ‘posta.json’ with typicals Google parameters: the same parameters that I use in Thunderbird… but doesn’t work

{
“name”: “posta”,
“module”: “mail”,
“action”: “setup”,
“options”: {
“host”: “smtp.gmail.com”,
“username”: “myemail@gmail.com”,
“password”: “mypassword”,
“port”: 465,
“useSSL”: true
}
}

6

Possibly, as your server is acting as the relay it is still cheching the domain records