emails bouncing back

[andystarthryc]

Hi 

I run a small club, once a week I send an email out to around 35 members, from my BT account, one of our members email responses never gets to me, he always gets the following error message, 

can anyone advise please ?

subject: Email System Error - Returned Email with Subject: Reply check
Reply-To: Email Administrator <postmaster@btinternet.com>

Sorry, your message cannot be delivered. The mailbox you are trying to send to is currently unavailable or disabled, or your email has been rejected for policy reasons

Your message was rejected by gmail-smtp-in.l.google.com for the following reason:

    5.7.25 [213.120.69.27] The IP address sending this message does not have a
    5.7.25 PTR record setup, or the corresponding forward DNS entry does not
    5.7.25 point to the sending IP. As a policy, Gmail does not accept messages
    5.7.25 from IPs with missing PTR records. For more information, go to
    5.7.25  https://support.google.com/mail/answer/81126#ip-practices
    5.7.25 To learn more about Gmail's sender policy, go to
    5.7.25  https://support.google.com/mail/answer/81126. v15-20020a5d678f000000b0033e151c33bbsi177514wru.641 - gsmtp

[gg30340]

Is the member using the "reply to" function or does he reply using a fresh email?

Presumably your email is a "Group" email. Can you try sending an email only to the person to see if he can reply to that using both the "reply to" function and as a fresh email?  

[andystarthryc]

thanks, i will try this 

[andystarthryc]

Hi so we tried both options as suggested, but sadly both bounced back with the same error message, any other ideas please ? 

[rbz5416]

Is he the only Gmail user in the group?

[andystarthryc]

at least 10 of the group use gmail for their email account, an none of these have ever reported an issue 

[rbz5416]

So that would suggest it's something in his setup.

Can he mail you using mobile data rather than his broadband connection? Or vice versa if he usually uses mobile data.

Does it work from another device?

Does he use a mail client or webmail? Whichever it is, try the other.

[licquorice]

Does the recipient have his own domain email address? It looks as though he is trying to send from his domain using Gmail SMTP servers

The problem is almost certainly with the sender.