[OJS3.2.1.1] Rejected emails becuase of "does not meet IPv6 sending guidelines"

Software Support
1

Hello @ctgraham @asmecher

Describe the issue or problem
Some email sent by OJS are rejected with the following return message:

Our system has detected that this message 550-5.7.1 does not meet IPv6 
sending guidelines regarding PTR records and 550-5.7.1 authentication. 
Please review 550-5.7.1 https://support.google.com/mail/?p=IPv6AuthError 
for more information 550-5.7.1 . i5-20020a5d6305000000b002358d1a27ebsi8412670wru.763 
- gsmtp (in reply to end of DATA command)

Steps I took leading up to the issue
Automated Article Review Request email from OJS itself to a reviewer’s email adress.

What application are you using?
OJS 3.2.1.1

What and how can I configure the email sending in OJS to prevent those errors in future? Will this be solved after upgrading OJS to the newest version (which we will do shortly)?

Thanks,
Tobias

2

A general guide to configuring email in OJS can be found here:
https://docs.pkp.sfu.ca/admin-guide/en/email

In short, you must use the config.inc.php settings to specify a sender which is compatible with your (or your hosting provider’s) SFP and DMARC rules, including DKIM signatures.

What is your current email configuration in config.inc.php?

3

@ctgraham
Thanks for your reply! We have this Config:

;;;;;;;;;;;;;;;;;;
; Email Settings ;
;;;;;;;;;;;;;;;;;;

[email]

; smtp = On

; smtp_server = mail.example.com
; smtp_port = 25

; smtp_auth = ssl
; smtp_username = username
; smtp_password = password
;
; smtp_authtype =

; smtp_oauth_provider = Google
; smtp_oauth_email =
; smtp_oauth_clientid =
; smtp_oauth_clientsecret =
; smtp_oauth_refreshtoken =

; smtp_suppress_cert_check = On

allow_envelope_sender = On

default_envelope_sender = our@mail-adress.ext

force_default_envelope_sender = On

force_dmarc_compliant_from = On

dmarc_compliant_from_displayname = '%n via %s'

time_between_emails = 3600

max_recipients = 10

require_validation = On

validation_timeout = 14

I’ll read your given links.

Thanks,
Tobias