https://community.blueprism.com/t5/Product-Forum/Failure-in-Send-Mail-function-Failed-to-add-TO-recipient/m-p/54882#M9302 If you ""hard type"" it you must use "" "". If you just use a Data item (text) you just need to use that. Try tesing with your own email adress.  /Christian Mon, 02 Jul 2018 13:02:00 GMT m05819 2018-07-02T13:02:00Z https://community.blueprism.com/t5/Product-Forum/Failure-in-Send-Mail-function-Failed-to-add-TO-recipient/m-p/54881#M9301 Hello, Has someone had the issue Failed to add TO recipient with the Send Mail function before? What might be the causing the error? Ihave tried putting the email address in between and " " symbols without success. I am happy to provide more information about the setup and the problem. Thanks in advance. Mon, 02 Jul 2018 11:58:00 GMT https://community.blueprism.com/t5/Product-Forum/Failure-in-Send-Mail-function-Failed-to-add-TO-recipient/m-p/54881#M9301 Anonymous 2018-07-02T11:58:00Z https://community.blueprism.com/t5/Product-Forum/Failure-in-Send-Mail-function-Failed-to-add-TO-recipient/m-p/54882#M9302 If you ""hard type"" it you must use "" "". If you just use a Data item (text) you just need to use that. Try tesing with your own email adress.  /Christian Mon, 02 Jul 2018 13:02:00 GMT https://community.blueprism.com/t5/Product-Forum/Failure-in-Send-Mail-function-Failed-to-add-TO-recipient/m-p/54882#M9302 m05819 2018-07-02T13:02:00Z https://community.blueprism.com/t5/Product-Forum/Failure-in-Send-Mail-function-Failed-to-add-TO-recipient/m-p/54883#M9303 Thank you Christian, I have tried that too without success. I suspect there might be some security settings on the exchange server not permitting MAPI calls. Mon, 02 Jul 2018 15:54:00 GMT https://community.blueprism.com/t5/Product-Forum/Failure-in-Send-Mail-function-Failed-to-add-TO-recipient/m-p/54883#M9303 Anonymous 2018-07-02T15:54:00Z https://community.blueprism.com/t5/Product-Forum/Failure-in-Send-Mail-function-Failed-to-add-TO-recipient/m-p/54884#M9304 I am having the same issue. Has anyone figured this out? Wed, 11 Jul 2018 01:35:00 GMT https://community.blueprism.com/t5/Product-Forum/Failure-in-Send-Mail-function-Failed-to-add-TO-recipient/m-p/54884#M9304 lesterbethel 2018-07-11T01:35:00Z https://community.blueprism.com/t5/Product-Forum/Failure-in-Send-Mail-function-Failed-to-add-TO-recipient/m-p/54885#M9305 I added a loop so that it retries up to 5 times until its succesfull and it always works by the 5th time. It must be an Exchange issue. I don't think its related to the format of the email address Wed, 11 Jul 2018 02:21:00 GMT https://community.blueprism.com/t5/Product-Forum/Failure-in-Send-Mail-function-Failed-to-add-TO-recipient/m-p/54885#M9305 lesterbethel 2018-07-11T02:21:00Z