May I know?

If you are trying to sent mail with attachment using php, check the following things: [1]. Some times attachment is too much heavier to process so we need to set some settings on php initialization: add the following code on your mail sent page: < ? p h p ini_set ("memory_limit","24M"); ini_set ("upload_max_filesize","5M"); ? > [2]. Increase the localhost mail sent size: 1. Goto your IIS 2. Right click on " Default SMTP Virtual Server " 3. Choose " Properties " 4. Select " Access " tab -->" Connection control " --> Click on " Connection... " button --> check " All except the list below " --> "OK" 5. Select " Access " tab -->" Relay restrictions " --> Click on " Relay... " button --> check " All except the list below " --> " OK " 6.Select " Message " tab --> Increase...

If you getting message like : "Your email message was unable to sent because your mail server rejected the sender." This message is appearing in my local machine when i am trying to send mail with attachment by using php. Solution:  1. Goto your IIS 2. Right click on " Default SMTP Virtual Server " 3. Choose " Properties " 4. Select " Message " tab 5. Increase the " Limit message size to (KB) " as your mail+attachment required. 6. Click on " Apply " then " OK ". 7. " Restart " your IIS. That's it.