PHP Mail is Being Sent to Spam
1673
How do you make sure email you send programmatically is not automatically marked as spam?
46422
How can I prevent spam on sites which I control?
119731
Postfix check outgoing mail for spam
7798
How can I prevent my mail from being classified as spam?
150512
Know if email was a reply using IMAP in PHP
4576
php mail bcc multiple recipients
13820
Spambots causing server crashes. How do I block them?
148955
Gmail treats mails from my domain as spam. Why? How to avoid it?
1654
PHP mail function doesn't complete sending of e-mail
72123
php mail function not getting the emails
123216
Massive spam users and spam entries despite triple layer protection
15143
Sending email with PHP from an SMTP server
145713
Gmail is marking my emails as SPAM. However, ISnotSPAM marks it as not-spam
90053
How do I specify SMTP server for an e-mail in PHP?
123788
Remove the extra headers from the e-mails sent
125586
PHP mail not showing up at Gmail but shows up at Hotmail and other 3rd party/ISP account
142774
PHP Mail Encodes Subject Line