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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Hi guys, we're using Dovecot/Postfix here for our mail system. I'd like to switch the `passdb` authentication on Dovecot from PAM over to a custom implementation. We'd prefer to have some sort of script check the password with an external IAM provider via HTTP. Is there any way we can accomplish this?<o:p></o:p></p><p class=MsoNormal>The idea is to have Dovecot somehow call a script or send a username/password to some service, which checks the username/password against the identity provider and returns a “yes/no” back to Dovecot.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>`checkpassword` seems like it <i>may</i> work but I see no documentation on its API.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div style='mso-element:para-border-div;border:none;border-bottom:solid windowtext 1.5pt;padding:0in 0in 1.0pt 0in'><p class=MsoNormal style='border:none;padding:0in'><o:p> </o:p></p><p class=MsoNormal style='border:none;padding:0in'><o:p> </o:p></p></div><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Freestyle Script"'>Matthew R</span><span style='font-family:"JetBrains Mono"'>, AD, FSEN, FSO, FSCR<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"JetBrains Mono"'>Chief Director of Engineering & Chairman of the Board of Directors<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"JetBrains Mono"'>Library of Code sp-us<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"JetBrains Mono"'><a href="matthew@staff.libraryofcode.org">matthew@staff.libraryofcode.org</a><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>