Stefano Bagnara ha scritto:
Please note that many servers have spam protections: in this case you send a message using the same address for sender and recipient so this could be interpreted by yahoo as spam: check your spam folder on yahoo, too!

Some of them uses SPF protocol and in this case please make sure that the domain of your sender address has not restrictive SPF records associated or you may not be entitled in sending mails from that addresses from your own server.

e.g:
[EMAIL PROTECTED] ~]# host -t txt gmail.com.
gmail.com descriptive text "v=spf1 redirect=_spf.google.com"
[EMAIL PROTECTED] ~]# host -t txt googlemail.com.
googlemail.com descriptive text "v=spf1 redirect=_spf.google.com"
[EMAIL PROTECTED] ~]# host -t txt yahoo.com.
yahoo.com has no TXT record

(you should also check SPF records, and not only TXT records).

The summary is that if you use a gmail address as sender, and you send your message from an IP that is not a gmail server and the receiving server supports the SPF protocol then they will recognize you may be forging the sender address and reject/mark as spam your mail.

Stefano


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