XOOPS 2.0.16
Contact Us Version 1
Liaise Version 1.24
PHP 4.4.4-8+etch1
MySQL 4.1.15-Debian_1

The Contact Us form sends the message only on the second attempt every time.

The Liaise module on the same website appears to send, but the message is never received.

I don't know if these problems appeared simultaneously, and the behaviours are different so I don't know if there is a common cause.

The hosting company say everything is running normally from their perspective.

Any suggestions please!

try a different method of sending by changing the settings in the module preferences. Php Mail, SendMail etc.

Quest

Good suggestion. Tried changing from PHPMail to Sendmail but the Protector module gave a security hole warning! Then had a go at SMTP which didn't work at all. (That may be because I hadn't set it up correctly.)

I'm thinking it would be quickest to do a clean install by upgrading to 2.0.18.