Hello,
I’m having some problem with Pop3 connection. I have a windows service that cyclically checks a series of email accounts. Often I read in my logs this error:
AsposeException: Command failure.
—> AsposeException: Command failure.
—> AsposeException: Command failure.
—> Pop3Exception: Command failure.
_ at #=qSl$tZTRFBarbYz5wRD7e548K_5mO23$hAM_QPm$7BbjmqpfbrIWtkNA4Bs0VEwF.#=qGTDkgu6wvr7Flb5WIFBQyg==(Byte[] #=q2OJQJaghB3oqo9YEn_qOKA==, StringBuilder #=qw5r$wmg5bTsZIlTB4ZaGZQ==, Int32 #=qVo6HnceVPibZJcP$vpQpg==, Int32 #=qHIpk_I6k6wcXKOBkyepO0w==, Boolean #=qnl6IfhfW3SKumW8R7QrUcg==)
_ at #=qSl$tZTRFBarbYz5wRD7e548K_5mO23$hAM_QPm$7BbjmqpfbrIWtkNA4Bs0VEwF.#=q2o1rLJErpG58qbdwKI2jkw==(String #=qpqcNDss$KTyiQl3$nLhmylavrBQG0mdEoQ4sW8bFoWM=, Boolean #=qnl6IfhfW3SKumW8R7QrUcg==)
_ at #=qSl$tZTRFBarbYz5wRD7e548K_5mO23$hAM_QPm$7BbjmqpfbrIWtkNA4Bs0VEwF.#=qrbU4IhvlidS6OFLb6CYhKQ==()
— End of inner exception stack trace —
_ at #=qZjv$O8A8tC3xSHb2hmUzIx4l4QDqdIFYOx9AXqqvuk2A0mwyUrNaZoRI4T8g5grW.#=qVgz8W0fn8vufzrfJeqWjvA==(IAsyncResult #=qnoCi0w2uH1pECyhwRucoGw==)
_ at #=qZjv$O8A8tC3xSHb2hmUzIx4l4QDqdIFYOx9AXqqvuk2A0mwyUrNaZoRI4T8g5grW.#=qjM_ICd2OBlwpBCJmYYeTjw==()_
_ at #=qo8PzLFHvGls4$yHOTpw96uANTsWpC0bf8Rg823$fALgTF8Vyt5oTQpBb9HVHf8z8.#=qvingjrTCydadKJ4VRPP4x7JQnfv8daeiMP0QwMRqTzM=(String #=qHKYVJMEkIVM2p53RPZj0GQ==, Int32 #=qp90UqPu0KTpWNW1oKfMDQQ==, Int32 #=qw4OsrzMmP7FcEz0g4FxonA==)_
_ at #=qo8PzLFHvGls4$yHOTpw96uANTsWpC0bf8Rg823$fALgTF8Vyt5oTQpBb9HVHf8z8.#=qqh3tWKx160fvl5MrnvCTpA==(String #=qHKYVJMEkIVM2p53RPZj0GQ==, Int32 #=qp90UqPu0KTpWNW1oKfMDQQ==, Int32 #=qw4OsrzMmP7FcEz0g4FxonA==)_
_ at #=qo8PzLFHvGls4$yHOTpw96uANTsWpC0bf8Rg823$fALgTF8Vyt5oTQpBb9HVHf8z8.#=qdmp4FEnW50EjBobrEoozmHK6Dc4EVZSmYk7qqNWEnus=(String #=qHKYVJMEkIVM2p53RPZj0GQ==, Int32 #=qp90UqPu0KTpWNW1oKfMDQQ==)_
— End of inner exception stack trace —
_ at #=qo8PzLFHvGls4$yHOTpw96uANTsWpC0bf8Rg823$fALgTF8Vyt5oTQpBb9HVHf8z8.#=qdmp4FEnW50EjBobrEoozmHK6Dc4EVZSmYk7qqNWEnus=(String #=qHKYVJMEkIVM2p53RPZj0GQ==, Int32 #=qp90UqPu0KTpWNW1oKfMDQQ==)_
_ at #=qo8PzLFHvGls4$yHOTpw96uANTsWpC0bf8Rg823$fALgTF8Vyt5oTQpBb9HVHf8z8.#=qcW7kqa8dG3oXpjCQ$hdNW1vgKfy2aDU$JBnglRr0iE=.#=qR0$Xtdrb82mxKHNPerAGv5wCf3aU3Z06znM8X4CZHGrPTM$Votv0Ccyvrtmya20O()
— End of inner exception stack trace —
_ at #=qo8PzLFHvGls4$yHOTpw96uANTsWpC0bf8Rg823$fALgTF8Vyt5oTQpBb9HVHf8z8.#=qsEeOzLDn8Fz4p_oyMYowot3OcgpkokDOfInomlm2c84=(String #=qHKYVJMEkIVM2p53RPZj0GQ==, Int32 #=qp90UqPu0KTpWNW1oKfMDQQ==)_
_ at #=q3MqnJOy$uHE0Hjize6QO7Prd3QFsQM85rIzVHSBcaOo=.#=qnis9x60kJSDEXQxl1kQIuA==(Int32 #=qarDyfZt0bZalTZSKf2MqAA==)_
_ at Aspose.Email.Pop3.Pop3Client.GetMessageCount(IConnection iConnection, Boolean closeTransaction)_
_ at Aspose.Email.Pop3.Pop3Client.GetMessageCount()_
I have enabled the Pop3Client Activity Logging and in the log file the only error that I see is:
-ERR [SYS/PERM] folder locked by a POP3 session
Is it possible that every time that the activity log write this error, the Aspose Library throw the exception with the “command failure” message?
In what circumstances is the folder blocked by a POP3 session? Is it possible that it is due to concurrent access by other users or other applications?
Thanks.