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The following address(es) failed: beratung.zam@fz-juelich.de host mailgw-k01.its.kfa-juelich.de [134.94.4.39] SMTP error from remote mail server after RCPT TO:: 577 5.1.1 : Recipient address rejected: undeliverable address: host exch2016-e2.its.kfa-juelich.de[134.94.4.36] said: 550 5.1.10 RESOLVER.ADR.RecipientNotFound; Recipient not found by SMTP address lookup (in reply to RCPT TO command) beo1@maties.sun.ac.za host mail1.sun.ac.za [146.232.64.12] SMTP error from remote mail server after RCPT TO:: 550 bergmant@edu.fs.gov.za host securemail-mx1.synaq.com [196.35.198.158] SMTP error from remote mail server after RCPT TO:: 550-rejected because 52.221.55.32 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=52.221.55.32 bergmanb@edu.fs.gov.za host securemail-mx1.synaq.com [196.35.198.158] SMTP error from remote mail server after RCPT TO:: 550-rejected because 52.221.55.32 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=52.221.55.32 bephethilep@social.mpu.gov.za host securemail-mx1.synaq.com [196.35.198.158] SMTP error from remote mail server after RCPT TO:: 550-rejected because 52.221.55.32 is in a black list at combined.abusix.dnsbl 550 https://lookup.abusix.com/search?q=52.221.55.32 benvande.zand@wxs.nl host mx.kpnmail.nl [195.121.65.158] SMTP error from remote mail server after RCPT TO:: 554 5.7.1 recipient 'benvande.zand@wxs.nl' not known bep@botzoo.uct.ac.za host za-smtp-inbound-1.mimecast.co.za [41.74.197.201] SMTP error from remote mail server after RCPT TO:: 550 sip.invaluement.mimecast.org Blocked by ivmSIP and/or ivmSIP/24 - see https://www.invaluement.com/lookup/?item=52.221.55.32. - https://community.mimecast.com/docs/DOC-1369#550 [4wQIPCHtO7eo_YHOIRRsdQ.za46] ber@sacc.org.za host sacc-org-za.mail.protection.outlook.com [104.47.5.36] SMTP error from remote mail server after RCPT TO:: 550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [HE1EUR02FT037.eop-EUR02.prod.protection.outlook.com] beny@khwezi.org.za host khwezi-org-za.mail.protection.outlook.com [104.47.8.36] SMTP error from remote mail server after RCPT TO:: 550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [AM5EUR03FT022.eop-EUR03.prod.protection.outlook.com] benvr@MORECORP.CO.ZA host morecorp-co-za.mail.protection.outlook.com [104.47.2.36] SMTP error from remote mail server after RCPT TO:: 550 5.4.1 Recipient address rejected: Access denied. 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User unknown benvanheerden@natref.com host natref-fw1.natref.com [196.35.252.130] SMTP error from remote mail server after RCPT TO:: 550 5.5.0 no such recipient - benvanheerden@natref.com beplan8@civic.mangaung.co.za all hosts for 'civic.mangaung.co.za' have been failing for a long time (and retry time not reached) benut2@civic.mangaung.co.za all hosts for 'civic.mangaung.co.za' have been failing for a long time (and retry time not reached) Benonic@bridges.co.za host ALT2.ASPMX.L.GOOGLE.COM [142.250.115.27] SMTP error from remote mail server after RCPT TO:: 550-5.1.1 The email account that you tried to reach does not exist. Please try 550-5.1.1 double-checking the recipient's email address for typos or 550-5.1.1 unnecessary spaces. Learn more at 550 5.1.1 https://support.google.com/mail/?p=NoSuchUser s31si3255984otu.310 - gsmtp benoitk@doxadeo.co.za host doxadeo-co-za.mail.protection.outlook.com [104.47.6.36] SMTP error from remote mail server after RCPT TO:: 550 5.4.1 Recipient address rejected: Access denied. AS(201806281) [VE1EUR02FT047.eop-EUR02.prod.protection.outlook.com]