Egistration emails not reaching Gmail, but other domains work (OSSN + SMTP)

eric redegeld Posted in Technical Support 6 months ago

If using OSSN:
OSSN version: 8.1 premium
Website URL (optional): justbsocial.eu

If facing any bug:
PHP Version : 8.1
Error Log if any: none
Browser: all
OS (Window/Linux/Android/iOS/Mac):

Hello,

I’m running OSSN on a VPS with a configured mailserver.

Sending email directly from the VPS/webmail to a user works fine.

SMTP component in OSSN is enabled and reports as “working.”

External testers (mail-tester.com, etc.) give my domain a perfect score (10/10, 100%).

Emails from the site do reach other addresses/domains, but never Gmail.

Even with MFA component enabled and manual validation done, Gmail does not deliver the messages (not in Inbox, not in Spam).

So it seems the mailserver and DNS (SPF/DKIM/DMARC) are correct, but Gmail rejects or drops OSSN-sent emails.

What am I missing?

Is there an extra configuration step inside OSSN?

Do I need to adjust headers/tags in the SMTP component?

Or is this specifically a Gmail deliverability issue?

Any advice would be greatly appreciated.

Thanks in advance!

Replies
Dutch Eric redegeld Replied 5 months ago

yes, got that as backup. but again working from an VPS, with aapanel and mailserver.....
I want it to work. lot of work. But seems to work now. And the big wall is gmail. all others are getting mail. gmail user not

Arsalan, any ATA on the nee core update?

German Dominik L Replied 5 months ago

I had a similar issue and I changed OSSN to use a different SMTP Server of a "high trustworthy" SMTP provider like SMTP2Go

Indonesian Arsalan Shah Replied 6 months ago

Glad that it works now

Dutch Eric redegeld Replied 6 months ago

Hi Arslan, new user test and now 10/10
https://www.mail-tester.com/test-mbx020q89&reloaded=1

one dmarc issue but that good take some time

Dutch Eric redegeld Replied 6 months ago

okay, one payed support helps.

my domain hoster just helps me out, hosting your own mailserver is fun, but also pain in the ass
solution whitelabel on then this must be set for me
ns1.webhost.company
ns2.webhost.company
ns3.webhost.company

With that on, the dns setting runs and can be found.
the first password reset now enter the user @gmail mail box.

Gmail is so strickt that i discovver that not directly.

Dutch Eric redegeld Replied 6 months ago

well for me is also now more clear.
i test mij mailserver with roundcube webmail.justbsocial.com

did the same now as you for new user and indeed 5/10

Wel so weird that from same mail sever this is so differend
direct, or from the ossn site.

i look further
Thank you

Indonesian Arsalan Shah Replied 6 months ago

Also this :) there must be issue with your DNS server if it shows sometime and doesn't on other time.

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Indonesian Arsalan Shah Replied 6 months ago

No idea i am actually done here as for me mail tester shows 5/10
Received in gmail but as mentioned before your server have issues and now confirmed with mail-tester i have 0 idea why it shows 10/10 for you and not for me :) also you must avoid changing dns for 24 hours when you change dns it takes 24 hours at least for these providers to clear cache of your old dns, it doesn't change itself in few seconds. Where as mail tester may not use the cached dns queries.

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Used -> https://justbsocial.eu/resetlogin

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Dutch Eric redegeld Replied 6 months ago

update, google all green.

lost now. resume @others.etc works
@gmail.com notImage

Dutch Eric redegeld Replied 6 months ago